A/B Testing - In A/B testing, you unleash two different versions of a keyword, advertisiment, website, web/landing page, banner design or variable and see which performs the best. You test version A vs. version B to see how different versions preform.

About.com
Formerly known as The Mining Company , About is a guide based information portal.
Online: About.com

Above the fold
With reference to the top part of a newspaper, the term is used in Internet marketing to describe the top part of the page that the user can see without scrolling down.

Ad Clicks
Number of times users click on an ad banner.

Ad Groups - A group of ads within a Campaign.

Address
A unique identifier for a computer or site online, usually a URL for a web site or marked with an @ for an email address. Literally, it is how your computer finds a location on the information highway.

Ad Scheduling - In internet marketing, Ad Scheduling is the practice of scheduling the day into several parts, during each of which a different t advertising rule is applied based on advertising objective, budget, and competitors.

Ad Views (Impressions)
Number of times an ad banner is downloaded and presumably seen by visitors. If the same ad appears on multiple pages simultaneously, this statistic may understate the number of ad impressions, due to browser caching. Corresponds to net impressions in traditional media. There is currently no way of knowing if an ad was actually loaded. Most servers record an ad as served even if it was not.

Advertising Network
an aggregator or broker of advertising inventory for many websites. Advertising networks are the sales representatives for the Web sites within the inventory.

Affiliate
A marketing partner that promotes your product or services under a pay-for-results agreement.

Algorithm
The process a search engine applies to web pages so it can accurately produce a list of results based on a search term. Search engines regularly change their algorithms to improve the quality of the search results. Hence search engine optimisation tends to require constant research and monitoring.

Alta Vista
A popular search engine. One of the first search engines origanally owned by Digital now owned by Yahoo.
Online: http://www.altavista.com, http://www.av.com

Anchor
A word, phrase or graphic image, in hypertext, it is the object that is highlighted, underlined or "clickable" which links to another site.

Anchor Text
Anchor text refers to the visible clickable text for a hyperlink. For example: < a href="http://www.lazworld.com/" >This is the anchor text< /a >The text usually gives visitors or search engines important information on what the page being linked to is about.

Alexa
Founded in April 1996, Alexa Internet grew out of a vision of Web navigation that is intelligent and constantly improving with the participation of its users. Along the way Alexa has developed an installed based of millions of toolbars, one of the largest Web crawls and an infrastructure to process and serve massive amounts of data.
Online: Alexa

AOL
American Online. Stands for "A(merica) O(n)L(ine)" America Online, Inc., based in Virginia, originally began as a closed network content provider; meaning only AOL subscribers had access to AOL content. Today, this popular service provider continues to offer their own content (available only to AOL subscribers) as well as e-mail and Internet access that can be parentally controlled.
Online: AOL.com

Apache - Apache is a free, open-source web server software system that is pervasive on UNIX, Linux, and similar operating system types. It is also available for Windows and other operating systems. Google Analytics' admin system is powered by a variant of Apache.
Online: Apache.org

API
Application Programming Interface

ASCII
American Standard Code for Intformation Interchange

Applet
An application program written in Java which allows viewing of simple animation on web pages.

ARPA (Advanced Research Project Agency)
The U.S. Department of Defense agency that, in conjunction with leading universities, created ARPAnet, the precursor of the Internet.

Ask Jeeves
A meta search engine that allows natural english quires. You can ask a question as your search.
Online: Ask.com

ASP
Microsoft Active Server Pages. Also know as Application Service Provider.

ASPX
Microsoft Active Server Page Framework

Auditor
Third-party company that tracks, counts and verifies ad-banner requests or verifies a Web site's ad reporting system.

Avatar
A digital representation of a user in a virtual reality site.

Average Page Depth - The average number of pages on a site that visitors view during a single session.

Average Response Value - The average revenue value of each click, calculated as total revenue divided by total clicks.

B2B
Business to Business

B2C
Business to Consumer

B2E
Business to Employee

BMP
Bitmap (file.bmp)

BTF
Below the Fold

Backbone
A high-speed line or series of connections that forms a large pathway within a network. The term is relative to the size of network it is serving. A Backbone in a small network would probably be much smaller than many non-Backbone lines in a large network.

Bandwidth
How much information (text, images, video, sound) can be sent through a connection. Usually measured in bits-per-second. A full page of text is about 16,000 bits. A fast modem can move approximately 15,000 bits in one second. Full-motion full-screen video requires about 10,000,000 bits-per-second, depending on compression.

Backlinks
Backlinks are incoming links to a webpage. Backlinks are important for search engine optimization (SEO) because some search engines, give more credit to websites that have a good number of quality backlinks. Sites with better backlink counts usually rank better in SERPs

Banner
Banners are the 468-by-60 pixels ad space on commercial Web sites that are usually "hot-linked" to the advertiser's site.

Beta
This term has migrated from computer and software development, and it is usually used as "beta site." It means test site or test version. Beta is not the finally version of a product or web site, but it's close enough to show in public and work the bugs out.

Blog - A blog is an online journal or "log" of any given subject. Blogs are easy to update, manage, and syndicate, powered by invividuals and/or corporations and enable users to comment on postings.

Bookmark
A bookmark is an easy way to find your way Back to a web site -- just like a real bookmark helps you keep your place in a book you are reading.

Bot
Abbreviation for robot (also called a spider). It refers to software programs that scan the web. Bots vary in purpose from indexing web pages for search engines to harvesting e-mail addresses for spammers

Bounce Rate - This shows a percentage of entrances on any given page that resulted in an exit from the page without entering any other page on the site.

Branding
A school of advertising that says, "If the consumer has heard of us, we've done our job." Fortunately for agencies, brand value is extremely difficult to measure, so branding campaigns can be easily defended with grandiose predictions of future glory.

Browser
An application used to view information from the Internet. Browsers provide a user-friendly interface for navigating through and accessing the vast amount of information on the Internet.

Browser Caching
To speed surfing, browsers store recently used pages on a user's disk. If a site is revisited, browsers display pages from the disk instead of requesting them from the server. As a result, servers under-count the number of times a page is viewed.

Browsing
A term that refers to exploring an online area, usually on the World Wide Web.

BBS (Bulletin Board System)
Software that enables users to log into email, usenet and chat groups via modem.

Buttons
Objects that, when clicked once, cause something to happen.

Bytes - A byte is a unit of information transferred over a network (or stored on a hard drive or in memory). Every web page, image, or other type of file is composed of some number of bytes. Large files, such as video clips, may be composed of millions of bytes ("megabytes").

Campaign
Defines the daily budget, language, geographic targeting, and location of where the ads are displayed.

Cache
Cache is a storage area for frequently accessed information. Retrieval of the information is faster from the cache than the originating source. There are many types of cache including RAM cache, secondary cache, disk cache, and cache memory to name a few.

CD-ROM
Compact Disk-Read Only Memory, a storage medium popular in modern computers. One CD-ROM can hold 600 MB of data.

CFM
Cold Fusion Markup (file.cfm)

CGI
Common Gateway Interface. An interface-creation scripting program that allows Web pages to be made on the fly based on information from buttons, checkboxes, text input, etc.

CGI-BIN
Common Gateway Interface - Binary (/cgi-bin)

CGI Script - A CGI script is a program written in one of several popular languages such as Perl, PHP, Python, etc., that can take input from a web page, do something with the data, and produce a customized result (among many other possible uses). CGI scripts are widely used to add dynamic behavior to websites and to process forms.

Chat Room
An area online where you can chat with other members in real-time.

Click
The opportunity for a visitor to be transferred to a location by clicking on an ad, as recorded by the server.

Click-Through Rate
Percentage of times a user responded to an advertisement by clicking on the ad button/banner. At one time the granddaddy of Web-marketing measurements, click-through is based on the idea that online promotions that do what they're intended to do will elicit a click. CTR is one metric Internet marketers useto measure the performance of an ad campaign.

Cloaking
Cloaking describes the technique of serving a different page to a search engine spider than what a human visitor sees. This technique is abused by spammers for keyword stuffing. Cloaking is a violation of the Terms Of Service of most search engines and could be grounds for banning.

Code - Anything written in a language intended for computers to interpret.

Copyrighting
Copywriting for search engines is the art of creating web page copy that is tailored not only to fall in line with the current interpretation of search engine algorithms, but also to entice the reader to perform the action you desire. For example, to sign up for your newsletter, or click through to a certain area of your site.

Content Network
A group of Web sites that agree to show ads on their site, served by an ad network, in exchange for a share of the revenue generated by those ads.
Online: Google AdSense or Yahoo Publisher Network.

Contextual Advertising
Advertising that is targeted to a Web page based on the page's content, keywords, or category. Ads in most content networks are targeted contextually.

Conversion Rate
This is the percentage of your clicks that generate sales or leads.. This number is given by dividing the number of sale/leads by the number of clicks you send to the offer. For example, if 100 clicks generated 100 visitors to your site, and they generate 5 sales/leads then your conversion rate would be 20%

Cookie
A file on your computer that records information such as where you have been on the World Wide Web. The browser stores this information which allows a site to remember the browser in future transactions or requests. Since the Web's protocol has no way to remember requests, cookies read and record a userÕs browser type and IP address, and store this information on the userÕs own computer. The cookie can be read only by a server in the domain that stored it. Visitors can accept or deny cookies, by changing a setting in their browser preferences.

Content (A/B) Testing - Testing the relative effectiveness of multiple versions of the same advertisement, or other content, in referring visitors to a site. Multiple versions of content can be uniquely identified by using a utm_content variable in the URL tag.

CPA
Cost Per Action. A form of advertising where payment is dependent upon an action that a user performs. The action could be making a purchase, signing up for a newsletter, or asking for a follow-up call. An advertiser pays a set fee to the publisher based on the number of visitors who take action. Many affiliate programs use the CPA model.

CPC
Cost Per Click. Also called Pay per Click (PPC). A performance-based advertising model where the advertiser pays a set fee for every click on an ad. The majority of text ads sold by search engines are billed under the CPC model.

CPC Campaign
A website marketing campaign based on a cost-per-click price where you only pay for the visitors that click on your listings. Hitwise Search Marketing provides guaranteed traffic at competitive cost per click prices. Due to our relationships with search engines combined with our optimisation techniques, the price of marketing your website is lowered drastically.

CPL
Cost Per Lead

CPM
CPM is the cost per thousand for a particular site. An advertiser that charges every time an ad is displayed to a user, whether the user clicks on the ad or not. The fee is based on every 1,000 ad impressions (M is the Roman numeral for 1,000). Most display ads, such as banner ads, are sold by CPM.

CPS
Cost Per Sale

CPT
Cost Per Transaction

CPTM
Cost per targeted thousand impressions.

CRM
Cuustomer Relationship Management

CSS
Cascading Style Sheet (file.css)

CTA
Abbreviation for Content Targeted Ad(vertising). It refers to the placement of relevant PPC ads on content pages for non-search engine websites.

CTR
Click Through Rate

Coverage
The percentage of a population group covered by the Internet.

Crawler
A program used by a search engine to "crawl" links on the Internet to find and index content. Also called a robot or spider. Can be used to identify and differentiate between types of crawlers indexing your site.

Creative
The technology used to create or develop an ad unit. The most common creative technology for banners is GIF or JPEG images. Other creative technologies include Java, - HTML, or streaming audio or video. These are commonly referred to as rich media banners.

Cyberspace
Coined by author William Gibson in his 1984 novel "Neuromancer," cyberspace is now used to describe all of the information available through computer networks.

Default Page -The default page setting should be set to whatever the default (or index) page is in your site's directories. Usually, this will be 'index.html', but on Windows IIS servers, it is often 'Default.htm' or 'index.htm'. This information allows Google Analytics to reconcile log entries such as 'http://www.example.com/' and 'http://www.example.com/index.html', which are in fact the same page. Without the Default Page information entered correctly, these would be reported as two distinct pages. Only a single default page should be specified.

Delegation
The process of assigning name servers to a domain name.

Description
A short piece of descriptive text to describe a web page or website. With most search engines, they gain this information primarily from the meta data element of a web page. Directories approve or edit the description based on the submission that is made for a particular URL.

Directory
An index of websites based mainly on human editing and categorization. In most cases the content is submitted to the directory, the editorial team will then approve a title and description and place the URL in an appropriate category. For example, Yahoo! is a human edited directory.

Directory Optimisation
The process of creating a submission that is designed to increase the ranking according to relevant search terms. This process is especially important for paid submissions as an optimised submission greatly enhances the chances of receiving a good ROI.

DHTML
Dynamic Htpertyext Markup Langugage

DML
Data Manipulation Language

DNS - Dimain Name System
Translates domain names to IP addresses. When a domain name is delegated to a name server, the domain name system ensures the name can be translated to the IP address of the web server.

Doorway Page
A page that is optimised to rank well for a given keyphrase. Also known as a Hall Way or Tunnel Page.

Domain
A domain is the main subdivision of Internet addresses, the last three letters after the final dot, and it tells you what kind of organization you are dealing with. There are six top-level domains widely used: .com (commercial) .edu (educational),.net (network operations), .gov (US government), .mil (US military) and .org (organization). Other, two letter domains represent countries; thus;.uk for the United Kingdom, .dk for Denmark, .fr for France, .de for Germany, .es for Spain, .it for Italy and so on.

Dynamic Rotation
Advertisements rotate on a timed basis.

Gateway
A link from one computer system to a different computer system.

Geo Targeting
Delivery of ads specific to the geographic location of the searcher. Geo-targeting allows the advertiser to specify where ads will or won't be shown based on the searcher's location, enabling more localized and personalized results.
Online: Local Internet Marketing

Googlebot
Google uses several user-agents to crawl and index content in the Google.com search engine. Googlebot describes all Google spiders. All Google bots begin with "Googlebot"; for example, Googlebot-Mobile: crawls pages for Google’s mobile index; Googlebot-Image: crawls pages for Google’s image index.

GIF (Graphic Interchange Format)
GIF (pronounced "gift") is a graphics format that can be displayed on almost all web browsers. It is a common compression format used for transferring graphics files between different computers. Most of the "pictures" you see online are GIF files. They display in 256 colors and have built-in compression. GIF images are the most common form of banner creative.

GIF89a or Animated GIF
A GIF animation tool that creates sequences of images to simulate animation and allows for transparent Background colors. Animated GIF's can generate higher response rates than static banners.

Goto.com
The original pay per click search engine that changed names and is now located at www.overture.com. Was acquired by Yahoo in 2003.
Online: http://www.overture.com

Googlebot - The name of the spider used by Google. Instructions to Googlebot can be directed in the robots.txt file. Googlebot statistics can be viewed with web analytics software, on webserver logs, and in Google webmaster tools.

Google Dance - Some internet marketers reference "Google Dance" as the time just after the search engine results pages change because of a change in Google algorithems. Usually webmasters and marketers who lost top ranking and keyword placements were the ones who told the "Google Dance" story.

Gross Exposures
Each time a Web server sends a file to a browser, it is recorded in the server log file as a "hit." Hits are generated for every element of a requested page (including graphics, text and interactive items). If a page containing two graphics is viewed by a user, three hits will be recorded - one for the page itself and one for each graphic. Webmasters use hits to measure their server's work load. Because page designs vary greatly, hits are a poor guide for traffic measurement.

HB
HotBot A popular search portal that is part of the Terra Lycos Network, but operates as a separate search engine in its own right.
Online: http://www.hotbot.com

Hacker
Originally used to describe a computer enthusiast who pushed a system to its highest performance through clever programming.

Helper Application
This term refers to software programs that run along with browser programs enabling them to perform additional functions. Good examples are Shockwave for downloading and viewing moving images and Real Audio for hearing sounds and music online.

History List
Most browsers have a pull-down menu which displays the sites you've recently visited so you can return to site instantly or view your latest surfing session. The same mechanism makes it possible for servers to track where you were before visiting a particular site -- better viewing habit information than television networks ever dreamed of providing.

Hit
A hit is simply any request to the web server for any type of file. This can be an HTML page, an image (jpeg, gif, png, etc.), a sound clip, a cgi script, and many other file types. An HTML page can account for several hits: the page itself, each image on the page, and any embedded sound or video clips. Therefore, the number of hits a website receives is not a valid popularity gauge, but rather is an indication of server use and loading.

Home Page
The page designated as the main point of entry of a Web site (or main page) or the starting point when a browser first connects to the Internet. Typically, it welcomes you and introduces the purpose of the site, or the organization sponsoring it, and then provides links to the lower-level pages of the site. In business terms, it's the grabber. If your home page downloads too slowly, or it's unclear or uninteresting, you will probably lose a customer.

Host
An Internet host used to be a single machine connected to the Internet (which meant it had a unique IP address). As a host, it made available to other machines on the network certain services. However, virtual hosting has now meant that one physical host can now be actually many virtual hosts.

Hotlists
These can be pull-down or pop-up menus on browsers that contain new or popular sites. Major browser and search engine home pages also contain updated hotlists, and there are entire sites -- such as Cool Site O' the Day.

HTML
HyperText Markup Language is a coding language used to make hypertext documents for use on the Web. HTML resembles old-fashioned typesetting code, where a block of text is surrounded by codes that indicate how it should appear. HTML allows text to be "linked" to another file on the Internet.

Hypertext
Any text that that can be chosen by a reader and which causes another document to be retrieved and displayed.

HTTP
Hyper-Text Transfer Protocol, the format of the World Wide Web. When a browser sees "HTTP" at the beginning of an address, it knows that it is viewing a WWW page.

HTTPS
Hyper-Text Transfer Protocol Secure.

Hyperlink
This is the clickable link in text or graphics on a web page that takes you to another place on the same page, another page or a whole other site. It is the single most powerful and important function of online communications. Hyperlinks are revolutionizing the way the world gets its information.

ICANN
Internet Corporation for Assigned Names and Numbers is a global non-profit corporation formed to oversee a select range of Internet technical management functions currently managed by the U.S. Government, or by its contractors and volunteers.
Online: http://www.icann.org

Index
The database of a search engine or directory.

IIS
Internet Information Services

IM
Instant Messaging

Impression (Ad Impression or Page Impression)
The ad impression is the metric a site uses for measuring inventory. Different definitions exist for this term: 1. The viewing of a page or ad(s) by the user. The assumption is that the page or ad images were successfully downloaded and the user viewed the page or ads on the page are recorded whether or not a user clicks on an ad. 2.The request for a page or ad. Agencies usually collect a fee for every thousand impressions (hence the term CPM Ð cost per thousand).

Inbound Link
An inbound link is an hyperlink to a particular Web page from an outside site, bringing traffic to that Web page. Inbound links important because many search engine algorithms use the quality and quantity of inbound links to measure the popularity of a Web page.

Infopreneur
Someone who starts up a business in information technology or online communications.

Interactivity
If your web site isn't interactive, it's dead.

Internet
A collection of approximately 60,000 independent, inter-connected networks that use the TCP/IP protocols and that evolved from ARPANet of the late '60s and early '70s. The Net," is a worldwide system of computer networks providing reliable and redundant connectivity between disparate computers and systems by using common transport and data protocols.

Internet Domain Name
The unique name that identifies an Internet entity.

Interstitial
Means "something in between" and is a page that is inserted in the normal flow of content between a user and a site. An Interstitial Ad is an "intrusive" ad unit that is spontaneously delivered without specifically being requested by a user. Blocking the site behind it, Interstitial Ads are designed to grab consumers' attention for the few nanoseconds it takes them to close the window. Interstitial's can be full pages or small daughter windows. Also referred to as "pop-ups."

Intranet
Intranets are private networks, usually maintained by corporations for internal communications, which use Internet -- usually web -- protocols, software and servers. They are relatively cheap, fast, and reliable networking and information warehouse systems that link offices around the world. They make it is easy for corporate users to communicate with one another, and to access the information resources of the Internet.

IRC (Internet Relay Chat)
A facility that allows people -- from many different places in the world at one time -- to chat in real time. The chats, or forums, are typed remarks, and they can be either public or private. This, understandably, is a wildly popular consumer area of the Internet. A sort of "ham radio" for the '90s, it offers intimacy combined with autonomy. Many celebrities are also talking to the public at pre-announced times, so IRC has commercial publicity uses, too. Business meetings can be conducted in the same way.

Inventory
The number of ads available for sale on a Web site. Ad inventory is determined by the number of ads on a page, the number of pages containing ad space and the number of page requests.

Invisible Web
A term that refers to the vast amount of information on the web that isn't indexed by search engines. Coined in 1994 by Dr. Jill Ellsworth.

IP address
Internet Protocol address. Every system connected to the Internet has a unique IP address, which consists of a number in the format A.B.C.D where each of the four sections is a decimal number from 0 to 255. Most people use Domain Names instead and the resolution between Domain Names and IP addresses is handled by the network and the Domain Name Servers. With virtual hosting, a single machine can act like multiple machines (with multiple domain names and IP addresses).

IP Delivery
To deliver content based on the IP address of the computer requesting the URL. Sometimes used to tailor content to different user groups.

ISDN (Integrated Digital Services Network)
ISDN lines are high-speed dial-up connections to the Internet. That's good. What's bad is that their cost and availability is determined by local telephone companies, which means in some places they are available, in other places not; and sometimes they're cheap, and at other times wildly expensive. It is a lot of commotion for a connection roughly four times faster -- 128,000 bits per second -- than a normal phone line. (The joke among communications experts is that ISDN stands for "It Still Does Nothing.") Wait for fiber optic lines which will be thousands of times faster -- that's the future.

ISP (Internet Service Provider)
A business that provides access to the Internet. Its services are available to either individuals or companies, and include a dial-in interface with the Internet, software supply and often web site and intranet design. There are currently over 3,000 ISPs in the U.S. alone. It's a growth business, and as a result pricing is highly competitive, so shop around.

Keyword
A word -- or often phrase -- used to focus an online search. A keyword is a database index entry that identifies a specific record or document. Keyword searching is the most common form of text search on the web. Most search engines do their text query and retrieval using keywords. Unless the author of the web document specifies the keywords for her document (this is possible by using meta tags), it's up to the search engine to determine them. Essentially, this means that search engines pull out and index words that are believed to be significant. Words that are mentioned towards the top of a document and words that are repeated several times throughout the document are more likely to be deemed important.
Online: Keyword Services

Keyword Matching - In Google Ad Words, there are four different keyword matching options, each specifying a different way for a keyword to interact with search queries. With some options, you'll enjoy more ad impressions; with others, you'll get fewer impressions (but potentially more targeted clicks). By applying the appropriate matching options to your keywords, you can best meet your ROI goals.

Your options are:

• Broad Match - This is the default option. If your ad group contained the keyword tennis shoes, your ad would be eligible to appear when a user's search query contained tennis and shoes, in any order, and possibly along with other terms. Your ads could also show for singular/plural forms, synonyms, and other relevant variations. For example, you ad might show on tennis shoe or tennis sneakers. Run a Search Query Performance Report to see what keyword variations trigger your ad.
• Phrase Match - If you enter your keyword in quotation marks, as in "tennis shoes," your ad would be eligible to appear when a user searches on the phrase tennis shoes, in this order, and possibly with other terms before or after the phrase. For example, your ad could appear for the query red tennis shoes but not for shoes for tennis, tennis shoe, or tennis sneakers. Phrase match is more targeted than broad match, but more flexible than exact match.
• Exact Match - If you surround your keywords in brackets - such as [tennis shoes] - your ad would be eligible to appear when a user searches for the specific phrase tennis shoes, in this order, and without any other terms in the query. For example, your ad wouldn't show for the query red tennis shoes or tennis shoe. Exact match is the most targeted option. Although you won't receive as many impressions with exact match, you'll likely enjoy the most targeted clicks - users searching for your exact keyword typically want precisely what your business has to offer.
• Negative Keyword - If your keyword is tennis shoes and you add the negative keyword -red, your ad will not appear when a user searches on red tennis shoes. Negative keywords are especially useful if your account contains lots of broad-matched keywords. It's a good idea to add any irrelevant keyword variations you see in a Search Query Performance Report or the Keyword Tool as a negative keyword.

Remember, no matter which matching options you use, it's important to only use keywords that accurately describe your product or service.
Online: Keyword Matching

Keyword Audit
independent third-party verification of your keyword use, strategy, bidding, and return on investment.
Online: Keyword Audit

Keyword Bidding
Keyword Bidding is the process or method used by search engines marketers to determine the ranking of paid keywords results in AOL, Google, MSN, Yahoo, and other search engines that require pay per click advertising to determine your ranking and positioning in their search results and in content results on networked partners' sites.
Online: Keyword Bidding

Keyword Research
Keyword research includes the processes and methodologies to research kewywords that would be used for search and internet marketing campaigns.
Online: Keyword Research

Keyword Marketing
Keyword Marketing is the act, process, or technique of promoting, selling, and distributing a product or service on-line.
Online: Keyword Marketing

KDA
Keyword Effectiveness Index

Killer App
A term that migrated from software development to online. It is nothing more than tech-talk for the eternal search for next big idea.

Lag
The amount of time between making an online request or command and receiving a response. Until lag time becomes no time at all the Internet will not be consumer-friendly, and its profit potential will remain limited.

LAN (Local Area Network)
A computer network -- which for some reason is pronounced "land" -- limited to a certain area, usually a single floor or building. The web is a network, but not a LAN.

Link
An electronic connection between two Web sites (also called "hot link").

Link Bait
Link bait is a form of spam in the form of editorial content posted on a blog or Web page and submitted to social media sites in hopes of building inbound links from other sites.

Link Building
The process of getting quality Web sites to link to your Web site, in order to improve search engine rankings. Link building techniques can reciprocal linking, entering barter arrangements, and may include buying links.

Link Popularity
A measure of inbound links. Several search engines have included this factor into their algorithms, the most notable being Goggle with their trademarked PageRank.

Listserver
A program that automatically sends email to a list of subscribers. It is the mechanism that is used to keep newsgroups informed.

Load
Usually used with up-load or down-load, it means to transfer files or software -- to "load" -- from one computer or server to another computer or server. In other words, it's the movement of information online.

Log or Log Files
File that keeps track of network connections. These text files have the ability to record the amount of search engine referrals that is being delivered to your website.

Login
The identification or name used to access -- log into -- a computer, network or site.

Mailing List
Online a mailing list is an automatically distributed email message on a particular topics going to certain individuals. You can subscribe or unsubscribe to a mailing list by sending a message via email. There are many good professional mailing lists, and you should find the ones that concern your business.

Meta Data
Data about Data

Meta Search Engine
A search engine which gathers the results of other search engines to provide an wider range of results
Online: Meta Tag Generator

MIME
Multi-purpose Internet Mail Extensions, a method of encoding a file for delivery over the Internet.

Modem
A contraction for "modulation/demodulation," it is the device that converts a digital bit stream into an analog signal (and Back again) so computers can communicate across phone lines.

Modem Speeds
The speed at which you connect to the Internet through your computer's modem. They include 14.4, 28,8, 33.6 and ISDN. T1 and T3 are high speed connections that don't require a modem.

Mosaic
Developed by NCSA, the National Center for Supercomputing Applications at the University of Illinois in Urbana, this is the breakthrough browser that revolutionized the Internet. It brought clickability and graphics to a hard-to-navigate, text-heavy information system and made the web -- and its vast commercial possibilities -- a reality.

MPEG
The file format that is used to compress and transmit movies or video clips online.

Multivariate Testing
A process by which more than one component of a website may be tested in a live environment. It can be thought of in simple terms as numerous A/B tests performed on one page at the same time.

My Space
MySpace is a social networking website offering an interactive, user-generated content with network of friends, music, photos, bullitens, blogs, groups, and more. Online: MySpace

Naymz
Reputation Management and Networking for Professionals. Online Naymz

Netiquette
A term that is used to describe the do's and don'ts of online behavior. There are books out about it. Read them if you want, or for a detailed online explanation go to The Net: User Guidelines and Netiquette. But it all comes down to good business -- and social -- practice. Be polite, be aware of the folks you are talking to, talk nicely and not too much.

Network (Ad Network)
An aggregator or broker of advertising inventory from many sites - 24/7 Europe is an Ad Network.

Net Monthly Circulation
The number of unique Web users in the panel that visited the site over the course of the reporting period, expressed as a percentage of the in-tab.

Newbie
A term to describe anyone new to an area, whether it be a particular forum online or the Internet.

Newsgroup
A discussion group on Usenet devoted to talking about a specific topic. Currently, there are over 15,000 newsgroups. Also called usenets, newsgroups consist of messages posted on electronic bulletin boards. Each board has a theme, and there are tens of thousands of newsgroups concerning every imaginable topic. Many of them cover professional subjects and societies and are rich sources of business information; others are junk and contain little but mindless drivel.

NSI
Network Solutions Inc.
Online: Network Solutions Inc.

Online
It's where you are right now -- and where the rest of the world is heading to get its information and entertainment, to communicate and buy products and services.

Online Service
A business that provides its subscribers with a wide variety of data transmitted over telecommunications lines. Online services provide an infrastructure in which subscribers can communicate with one another, either by exchanging email messages or by participating in online conferences (forums). In addition, the service can connect users with an almost unlimited number of third-party information providers. Subscribers can get up-to-date stock quotes, news stories hot off the wire, articles from many magazines and journals, in fact, almost any information that has been put in electronic form. Of course, accessing all this data carries a price.

Opt in/Opt out
An email marketing promotion that typically gives consumers an opportunity to "opt in" (taking action to be part of the promotion) or to "opt out" (taking action to not be part of the promotion). Marketers can be sensitive about the distinction, although many are secretly anxious about the day when email, like real-world direct mail, becomes an opt-out medium.

Overture
Formerly known as Overture and originally known as GoTo was acquired by Yahoo and represents Yahoo Search Marketing and is the most widely used pay per click search engine. Overture supplies results for some of the most popular search engines and search portals, including AltaVista, GO, HotBot, iWon, Lycos, MSN Search and others.
Online http://www.overture.com, http://searchmarketing.yahoo.com/

Page
All Web sites are a collection of electronic "pages." Each Web page is a document formatted in HTML (Hypertext Markup Language) that contains text, images or media objects such as RealAudio player files, QuickTime videos or Java applets. The "home page" is typically a visitor's first point of entry and features a site index. Pages can be static or dynamically generated. All frames and frame parent documents are counted as pages.

Page Request
The opportunity for an HTML document to be appear in a browser window as a direct result of a visitors interaction with a Web site (IAB). The page request is for a browser to "get' a page from a site and this request is recorded by the server log.

Page Views
Number of times a user requests a page that may contain a particular ad. A page is defined as any file or content delivered by a web server that would generally be considered a web document. This includes HTML pages (.html, .htm, .shtml), script-generated pages (.cgi, .asp, .cfm, etc.), and plain-text pages. It also includes sound files (.wav, .aiff, etc.), video files (.mov, etc.), and other non-document files. Only image files (.jpeg, .gif, .png), javascript (.js) and style sheets (.css) are excluded from this definition.

Pay-per-Click
An advertising pricing model in which advertisers pay agencies based on how many consumers clicked on a promotion. Condemned by advertisers and agencies alike for its many marketing vagaries and technical loopholes.

Pay-per-Impression
An advertising pricing model in which advertisers pay agencies based on how many consumers see their promotions.

Pay-per-Sale
An advertising pricing model in which advertisers pay agencies based on how many consumers actually buy something as a direct result of the promotion. Despised by agencies for the wretched accountability it brings to their lives.

PCMCIA
An acronym meaning Personal Computer Memory Card Industry Association. Many laptop computers use these devices as modems.

PDF
Portable Document Format. Word processing software, business applications or desktop publishing files on the Web that look exactly like the originals. Must have Adobe Acrobat Reader to view.

PDF Files
Adobe's Portable Document Format (pdf) is a translation format used primarily for distributing files across a network, or on a web site. Files with a .pdf extension have been created in another application and then translated into .pdf files so they can be viewed by anyone -- regardless of platform.

PID (Personal Information Destination)
There are millions of pages of information on the web, but if you are looking for a specific item, there is only one page -- or very few -- that contains exactly the information you need. That's your PID. Think of it as a needle in a haystack.

PFI
Pay For Inclusion. Ensures that your URL's are included in the search engine index. However, there is no guarantee of ranking.

PFP
Pay For Placement

PHP
Hypertext Preprocessor (file.php)

Plug-in
A program application that can easily be installed and used as part of a Web browser. Once installed, plug-in applications are recognized by the browser and its function integrated into the main HTML file being presented.

PNG
Portable Network Graphics (file.png)

PPC
Pay Per Click. A type of campaign or service which applies a CPC price to relevant keyword phrases to easily and accurately calculate positioning, online marketing costs and ROI for your website. As opposed to a Maintenance or Optimization SEO campaign, the client only pays for the traffic that is provided, based on the agreed CPC.

PPC Management
The process of managing PPC accounts, campaigns, ad groups, and keywords.
Online: PPC Management

PPC
Pay Per Cal. A type of campaign or service which applies a cost per phone call.

Podcast
A method of publishing audio files to the Internet for playback on mobile devices and personal computers.

POP
Point of Presence. POP is a service provider's location for connecting to users. Generally, POPs refer to the location where people can dial into the provider's host computer. Most providers have several POP's to allow low-cost access via telephone lines.

Portal
A Web site or service that offers a broa