I ran across this tip while browsing BoingBoing in class today. I can't believe that I hadn't heard of this before now. Apparently it is possible to use the english language translator for any of the google top level domains (.com, .jp. .co.uk, etc etc) and use it to view any website your employer's web filters may be blocking. I'd been getting TONS of hits in the last 2 or 3 months on tuzworld from people using this method and always wondered why people are going to google.com and having tuzworld translated into english when it was already in english.
Here is how its used: "If you are stuck behind a Boing Boing-proof firewall, you might be able to access Boing Boing using this link: http://www.google.com/translate?langpair=en|en&u=www.boingboing.net"
"Reader comment: Adjam says: " Iused that 'Google proxy' method to bypass our sysadmin's paranoid web restrictions all the time two years ago!
He would block it though, so instead of using google.co.uk /translate?langpair=en|en&u=www.somthing.com i would use google.co.jp or google.co.fr. And he was so incompetent that every now and then he'd just reset all the web restrictions without realizing it and I could use .co.uk again.""
Finally, here is a direct link to the O'Reilly page explaining this google hack.