Check out this Google Hacks link I picked up via Slashdot. My favorite new hack is using Google as a proxy server. Personally I don't need to use one, but if I did, this would be the way to do it.

Did you know you can use Google as a free proxy server? By submitting a specially-crafted, English-to-English translation query, you can capitalize on Google's translation service to anonymously submit all your Web requests.

So if you're at a school or workplace and would like to reach content that is otherwise inaccessible, try this hack. It's not like they're going to ban the world's best search engine.