If you're working for the sort of company that would go out of it's way to block all URLs which have the string "sex" in them, you've got bigger problems than not being able to view website.

Many years ago when I was doing .NET programming, a helpful resource was http://systemwebmail.com/. Predictably, the firewall at $CORP blocked /webmail/. I had to print it at home and bring it into work.

At workschool "proxy" is blocked, however you can just google for prxy and it auto corrects

While that's a pragmatic solution, the problem is of course with these ridiculous business firewalls which only prevent working.

Not if he hacks it with a Visual Basic GUI to trace the IP Address!