I'd be careful with that. If the company decides to take action against you, they can do a search on your name and see all the nasty details of what you've been posting on TERB. It gives them a good excuse to get rid of you, should they ever want to.
A pretty good rule of thumb is this: if you want to hide your surfing habits from the boss, don't surf at work. Everything's traceable, it's just a matter of how badly you want to trace something. I've had people tell me about encryption and anonymous filter websites to disguise what you're really doing, but eveything leaves a trail and when IT is sufficiently motivated to follow that trail, you're going to have a lot of questions to answer.
I have a friend in an HR dept and he showed me an IT report they pull on their employees' surfing habits. In particular, he showed me a site-by-site listing for a problem employee and it cooked his goose in arbitration. It's hard to plead your innocence when you're surfing "Up Roofus' Ass.com" and "Animal Lovin.net". Not to mention the utter humiliation he faced from his boss and coworkers.