I wander what the real value of those links is. I mean the homepage of those forums have high pagerank, but the pages where your link will be have PR0.
Not necessarily.. I've seen places where the posts end up PR4/PR5. How about http://www.propeller.com/ ? I know Netscape used to be like that.. Eric
Great list but the question is does everyone join all of them and comment regularly on each one? If so thats quite impressive. But thanks for the list!!