(referenced by Lazworld.com)

A

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.
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.
Aggregate: To gather, collect or assemble groups of Web sites or information.
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.

B-C

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
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.
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.
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 5%.
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 user’s browser type and IP address, and store this information on the user’s 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.
CPA: Cost per Action.
CPC: Cost per Click.
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.
CPL: Cost per Lead.
CPM: CPM is the cost per thousand for a particular site. A Web site that charges $15,000 per banner and guarantees 600,000 impressions has a CPM of $25 ($15,000 divided by 600).
CPS: Cost per Sale.
CPT: Cost per Transaction.
CPTM: Cost per targeted thousand impressions.

E-F-G-H-I

EPC (Earnings per Click): This number is given by dividing your revenue earned by the number of clicks you sent to the offer. For example, if you send an offer 100 clicks and earn $5.00 then your EPC would be $0.05
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 algorithms. 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.
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-- cost per thousand).
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."

P-R-S

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.
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.
RSS: Rich Site Summary or Really Simple Syndication. RSS is an acronym for Rich Site Summary, an XML format for distributing news headlines on the Web, also known as syndication.
SEM (Search Engine Marketing): The process of purchasing listings so as to appear under predetermined set of search terms. These listings appear in premium placements usually above and to the right of organic listings.
SEO: Search Engine Optimization.
Splash Page: A bridge page between a banner advertisement and an advertiser's Web site that provides product information and hotlinks. Splash pages are replacing many home pages -- particularly on sites more involved with news and publishing -- as gateways into web content. They start with a bigger "splash," more graphics and timely information, and change often -- like the cover of a magazine
Static Rotation: Advertisements rotate based on the entry of users into a screen. Regardless of the amount of time a user spends with a screen, advertisements will remain on the screen for the entire time and will not change.
Stickiness: A measure used to gauge the effectiveness of a site in retaining individual users. The term is typically used in promotional material when traffic numbers are too low to be effective in lauding a site's performance. Never mind the quantity, feel the stick.

V-W

Viral Marketing: Any advertising that propagates itself. When Hotmail users send email, they unwittingly infect the recipient with the tag line at the bottom of the message.
Wiki: A web application that allows users to add content, as on an Internet forum, but also allows anyone to edit the content. Wiki also refers to the collaborative software used to create such a website

For a complete Internet Marketing Glossary, please visit http://www.lazworld.com/glossary.html