welcome and here's a tip.
click a few likely threads and save the pages without reading, take them home on floppy and have your posts in text files ready to cut & paste. It sure helps if you get fancy with the HTML. Though it lacks some of the spontineity - Spaw will always beat you to the punchline, he would've anyway!!!
If your company's policy is clear on use of the internet I would counsel caution though, if in doubt do it in public - at the library.