Actually...and you DIDN'T hear this from me...at all...the way the cool kids get around web filters is via TOR (The Onion Router).
Here's a
link to a version of Firefox Mobile tied to TOR that will run from a USB flash drive (or anywhere really) without an install.
This isn't a guarantee of success...but if all you care about is web surfing, then it works pretty well. The bonus is that you're surfing more or less anonymously since your packets are actually passing through three separate, random servers before it reaches the destination host. The downside is that because your traffic is passing between three separate, random servers...browsing time is slow.
However, Slow vs. None...not a bad deal.
But, you didn't hear it from ME if you get busted and fired.
__________________
"But there's no sense crying over every mistake,
You just keep on trying till you run out of cake"