What kind of Advertising Provides Popups For Underlined Words?

United States
December 13, 2008 2:33am CST
What kind of advertising companies provide popups for posted underlined words? I have noticed this in a paid forum (Platinum Lounge). Their advertiser posts advertisements every time a key word comes up. I was wondering what kind of advertising this was, and how you would go about getting it for your site. Anyone have any input?
1 response
@krandika (19)
• Serbia And Montenegro
21 Dec 08
This website will help you link is http://www.fillwallet.co.cc