Glossary

Above the fold

Positioning an ad so that it is viewed on a web page without the need for horizontal scrolling.

Ad unit

A group of from one to six ads, displayed by a single call to the ad program’s server (typically via a program such as Google’s AdSense).

Affiliate

A virtual online sales agent for an online merchant, sometimes also called an associate. Affiliates make money when visitors to the affiliate site click through to the merchant’s site, and then make a purchase.

Affiliate aggregator

A business that manages the relationships between online merchants and their affiliates.

Associate

See affiliate.

Authentication headers

Information required by an AdWords API web service to validate access to the service.

Blog

An online dated chronicle, usually in reverse chronological order.

Blogging

The act of creating a blog entry.

Blogosphere

The online world of blogs and blogging.

Bot

Software that automatically searches the web for sites and pages to index (also called a robot, web crawler, or spider).

Channel

Used to track advertising results from different portions of a site (or sites).

Click fraud

A click made without actual interest in the product or services offered.

Click-through

The act of clicking on a link (or linked ad) on a web page and opening the target of that link or ad.

Competitive filter

Used to block ads that link to specific domains; often used to block competitor’s ads from appearing on a site.

Contextually relevant ad

An ad whose content is relevant to ...

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