Click rate-Click Fraud Through Within Stream  

Click rate - ratio of ad clicks to ad impressions.


Clicks -
1) metric which measures the reaction of a user to an Internet ad. There are three types of clicks: click-troughs; in-unit clicks; and mouse overs;
2) the opportunity for a user to download another file by clicking on an advertisement, as recorded by the server;
3) the result of a measurable interaction with an advertisement or key word that links to the advertiser’s intended Web site or another page or frame within the Web site;
4) metric which measures the reaction of a user to linked editorial content. See iab.net for ad campaign measurement guidelines. See also, click-through, in-unit clicks and mouseover.

Click Fraud- Click fraud is a type of internet crime that occurs in pay per click online advertising when a person, automated script, or computer program imitates a legitimate user of a web browser clicking on an ad, for the purpose of generating a charge per click without having actual interest in the target of the ad's link.

Click-stream -
1) the electronic path a user takes while navigating from site to site, and from page to page within a site; 2) a comprehensive body of data describing the sequence of activity between a user’s browser and any other Internet resource, such as a Web site or third party ad server.

Click-through -the action of following a link within an advertisement or editorial content to another Web site or another page or frame within the Web site. Ad click-through should be tracked and reported as a 302 redirect at the ad server and should filter out robotic activity.

Click-within - Similar to click down or click. But more commonly, click-withins are ads that allow the user to “drill down” and click, while remaining in the advertisement, not leaving the site on which they are residing.