Affiliate Marketing
Affiliate marketing is a revenue sharing solution, which involves one Web site (the merchant), which will invariably feature content or an advertisement will the express intention of driving traffic to another Web site (the advertiser)

Algorithm
Algorithms is a technique used by search engines to determine the significance of a Web site based on the user's keyword search.

Banner Ads
Banner ads are adverts that appear on most websites and occupy a position either at the top, bottom or side of a Web page

Analytics
Web analytics is the statistical analysis of a Web site's visitors. It includes such this as where they came from (links, search engines, country of origin, referral site), what they did (page views, purchases, registration) and where they went next (other pages visited and exit point)

Bounced Email
Bounced email is the industry term associated with electronic mail that is returned to the sender as a result of a fault at the receiving end

Contextual Advertising
Contextual advertising is the targeting of users by creating advertisements that reflect the contents of a Web page

Conversion rate
A conversion rate measures how often a Web user carries out an action desired by the advertiser e.g. registering or purchasing a product

Cookies
A cookie is a small computer file, which is left behind when a user visits a Web Page.

Cost Per Acquisition (CPA)
Cost Per Acquisition, this measures the return on advertising

Cost Per Lead (CPL)
A common method of selling advertisements, cost per lead (CPL) is a payment arrangement where an advertiser pays an affiliate a fee for each potential customer or "lead" that is directed to the merchant's Web site.

Cost Per Mille (CPM)

This is the most common means of measuring online advertising

Landing Page

The landing page, in online marketing, is a specific Web page a visitors arrives at after clicking on an advertisement or link.

Lead Generation
Lead generation refers to the "generation" of potential customer interest or inquiry into a business’ services or products. This marketing methodology happens in a number of ways, such as direct mail, trade shows, broadcast advertising, seminars, publicity, email marketing, or even product literature.

Media Planner
Media planners help their clients maximize the impact of their advertising campaign through a range of media.

Metrics
Metrics are the statistical measurements used in online advertising

Page View
A page view, also called a page impression, is the measure of how often a Web page is displayed.

Paid Search
Paid search, also called sponsored search, is a type of online advertising where Web site owners pay a fee to have their site listed in search results.

Pay-Per-Click
Pay-Per-Click ads are a common tool in search-engine marketing. Advertisers pay only when a user clicks on their ad.

Peer-to-Peer (P2P)
Peer-to-peer technology allows individual users to connect directly to each other directly, without a central point of management.

Retargeting
Retargeting is marketing technique in which ads follow users after they leave a site.

Return on advertising spending (ROAS)
Return on advertising spending refers to the dollars earned per dollars spent on an advertisement.

Rich Media
Rich media is the name given to interactive forms of media such as video and audio.

Search Engine Marketing (SEM)
Search engine marketing is used to describe the marketing techniques used to make a Web site most visible on search engines.

Search Engine Optimization (SEO)
Search engine optimization is the science of making a Web site more "friendly" to search engines, thus increasing the chances a site will make it to the top of a search engine's results page.

Search Engine Result Page (SERP)
A search engine result page, also referred to as search listings, is the page that is displayed after a user enters a keyword query into a search engine.

Spyware
Spyware, or adware, is any software is surreptitiously place on a user's computer and used to secretly gathers information.

Third Screen
Advertisers are finding a new venue for their services on the third screen -- the video display on cell phones.

User Generated Content (UGC)
In traditional media, professionals create the content and users consume it. But today users create and share their own content. It's a new equation with risks and rewards for marketers.

Viral Marketing
Viral marketing refers to techniques that use pre-existing social networks to generate increases in brand consciousness, through self-replicating viral methods, analogues to the increase of pathological and computer viruses.