check out www.Guidescope.com Ive been using it for 2 years now . . . coupled with Firefox . . . no popups, no ads. . . very pleased!
it is very good. But its not widely used as i think ppl are wary of proxies. This is not an anonymonizer! U can turn it off and on. If you are bothered by banners, flashers and just ads in general its great!
Or from their FAQ: "Does Guidescope watch everything I do while browsing? When blocking is turned on, our software works by sending the URLs of the pages you visit to our server, which checks them against a database of known pages containing ads and sends back a list of graphics to be blocked. When blocking is turned off, URLs are not sent to our server. Because our service sees where you go on the Web when blocking is on (so it can stop the ads there), we have carefully designed the service to avoid gathering information that would be likely to harm the privacy of your movements around the Web." While their privacy policy appears pretty good (although subject to change), it should be stressed that this is really a filtering rather than a privacy service in that it does not anonymise your online activity - your ISP can still see (and log, which many are legally required to do) your online activity. Indeed, this does not even appear to be a proxy service since your system still connects to websites directly.