There are some more keywords you may wish to add to your filter. Check the list here http://www.gnutellaforums.com/154163-post17.html & you can pick & choose if you wish to add any more from the list.

Edit: Sorry, didn't realise I posted the link earlier. lol I remember intending to but was distracted. I must have posted it at a later time anyway.
The text file contains additional keywords not on Sleepless' post.