a window that pops-up over the browser window.
An ad that appears in a separate window on top of content, similar to an interstitial. Also similar to a daughter window, but pop-ups are not associated with a displayed banner. See Daughter Window
Pop-ups are small windows that appear in the foreground of an Internet browser. Pop-ups are often used to display advertising or unwanted content on the screen, however they can be integrated into some websites for practical purposes.
A window that opens as a result of an action completed by a surfer. Some pop-ups will occured simple as a result of visiting a website, others will occur when something on a site is clicked, or when you exit.
A pop-up is normally a banner or microsite that literally pops up in a smaller window once a visitor has entered an affiliates website.
Term for unsolicited advertising that appears as its own browser window.
Irritating browser windows that open automatically when you visit a warez site. Usually contain voting portals or porn sites.
These are windows that appears on top of (over) the browser window of a Web site that a user has visited. In contrast to a pop-under ad, which appears behind (in back of) the browser window, a pop-up is more obtrusive as it covers other windows, particularly the window that the user is trying to read.
Those annoying pop-up windows that invade your browser space without permission. Some sites might pop-up a single ad window, others might use a chain of pop-ups. The good sites never need to use any. :)