In connection with display of advertising within Web pages, an applet is downloaded to the user's Web browser to track the user's interactions with the Web page. Tracked user interactions include mouse cursor position, time displayed on page, time of mouse cursor hovering over the advertisement, and...http://www.google.de/patents/US7310609?utm_source=gb-gplus-sharePatent US7310609 - Tracking user micro-interactions with web page advertising
