You probably all know The Anonymizer : anonymous surfing through that site, or via the Anonymizer-plugin. Here's another way: a JavaScript bookmarklet:

Make a file anonymizer.html:

Code:
<html><head></head>
<body>
Anonymizer bookmarklet
</body></html>
Open the file with your browser, and add it to your favorites. Next time you want to use the Anonymizer, just open the bookmarklet, and choose your site
BTW: AntiOnline is NOT available with the Anonymizer-service... (unless you pay for it).