Do follow signature links

I found an IM forum called dofollowforums dot org (I'm new here, so I can't post links, but that is the address as well--I hope it's ok that I posted it like that). It is only a PR2 site, but if the name is to be believed, then it allows a do-follow signature link. In fact, I believe they allow up to 4 links in the signature, but you need to make a certain number of posts first (20? 25? can't remember exactly).

 

Will you plz explain how to search foot prints of google.

 

Thanks for the great list buddy! WTG!

 

Do they still work? I personally prefer blog comments to forum signature.