I see a lot of you are utilizing your signatures to promote your products, and that's wonderful.
HOWEVER: I have seen some UGGGGGGGGLY signatures today. If you want to be more effective, you need to format your signature correctly.
If you've got a bunch of links, make sure they are grouped in the same area. And make sure you're using anchor text, because a url with no explanation is not going to get you anywhere.
Also, use your keywords as anchor text. The Warrior Forum WILL give you a free boost in google if you use this trick.