Free Anonymous Proxy Sites and Services
Surfing with an anonymous proxy site or service is simple: all you do is navigate to the anonymous proxy site, enter in the URL you'd like to visit anonymously, and you'll be able to surf leaving virtually no trace that you were ever there.
How Anonymous Proxy Sites Work
Basically, when you use an anonymous proxy and enter in the URL that you'd like to visit anonymously, the anonymous proxy retrieves the pages BEFORE they are delivered to you.
This way, the IP address and other browsing information that the remote server sees does not belong to you - it belongs to the anonymous proxy.
That's the good news. The bad news is that these anonymous proxy services tend to slow down your lightning-fast browsing a bit, and there usually will be ads on the top of your browser window (they've got to pay the bills somehow!). But it's worth it if you really need to be invisible on the Web.