If you are plagued with the annoying pop-up windows which say “Powered by Zedo”, I wrote an article on root777.com, describing in detail how to remove these Powered by Zedo popups.
These powered by zedo ad popups would usually launch in Internet Explorer or your default browser which might be Firefox and open up advertisements linking to auctions on Ebay or open up other advertising sites. This spyware also tracks your browser history. So say, you have just been to nfl.com, the spyware would launch a site relating to football.
Click here to go to the article on how to remove powered by zedo popups