A web page (often an advert) which appears in a separate window behind the current active window. The ad can therefore only be seen when the active window is moved, closed or resized.

This entry was posted on Thursday, August 27th, 2009 at 12:30 pm and is filed under Advertising. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.