Not That Any of You Who Are Being Blocked Can Read This...

But on the offchance that you're reading from home later:
bOINGbOING's guide to "defeating censorware". An excerpt:

Boing Boing reader Tom Jeziorny says, "I work for a BIG financial services company that apparently uses (not-so-) SmartFilter because BoingBoing has recently become a forbidden site. I use Bloglines as my RSS reader so that I can access the blogs I read from work and home. It turns out that Bloglines is acting as sort of a proxy, since it connects to your RSS feed and not my computer, I'm still able to read BoingBoing at work.

Guide to Defeating Censorware [bOINGbOING.net]