For those who are looking for some really good research and breakdown of the heretical teachings of the Watchtower Bible and Tract Society and the Jehovah's Witnesses, I would encourage you to check out this site, which will now have a link in the "Christian Links" section of the left sidebar:
Jesus is YHVH
The posts are not exactly light reading, there is a huge amount of information, and all the posts are written in a very scholarly manor. And unlike WTBTS material, which leaves out crucial parts of a quote to make it sound like the one being quoted agrees with WT theology, this fellow posts entire quotes, with nothing left out, to let you know that they DID NOT agree with WT theology.