See also: Click Throughs, In-Unit Clicks, Mouseovers

CIMM DEFINITION: A metric which measures the reaction of a user to an Internet ad. (Source: IAB)

2: The opportunity for a user to download another file by clicking on an advertisement, as recorded by the server. (Source: IAB)

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. (Source: IAB)

4: A metric which measures the reaction of a user to linked editorial content. (Source: IAB)