advertisements that suddenly appear on your computer screen, not necessarily in your browser window; they can block your view of the browser and use up band-width
A form of advertising that is seen when a new browser window opens without any direct action from the user. These ads are generated by the application the user is running, from the ISP of the user, or by the web site that is being visited. POP-Under ads are becoming more common; these open up under all open windows and are viewed as the user is closing all open browser windows.
A form of online advertising that opens a new web browser window to display advertisements.
Unsolicited advertising in a new browser window. Criminals create pop-up ads that seem to be from a trusted source and ask for personal details or download spyware, when clicked.
Pop-up ads are separate windows that open up and display an image or flash ad once a visitor has clicked a link or opened a page. Often times, pop-up ads arrive repeatedly and require the visitor to click several times before the windows stop popping up. Because pop-up ads tend to be irritating, they are often more of an annoyance than an effective method of advertising. In the long run, visitors will discontinue visiting the site and in effect, avoid the advertisement all together.
Advertisements that appear in a separate browser window while a web site is being viewed.
Advertisements that appear when you view certain web pages.
Term for unsolicited advertising that appears as its own browser window.