I am currently adding forums to the list of DoFollow Forums on my site. Thought some of your guys might benefit from it, so if you would like your forum to be added to the list or know of a good one to add let me know. Thanks and you can check out the list here, http://www.wizardofthewebsites.com/Forum_Submissions.html. Enjoy!!
You might add to your list the forum/site's pr rank or popularity or something. Maybe they are all popular I am not familiar with all of them. Some dofollow forums I have checked out in the past were kind of boring and not much happening.