Antique-Bottles.Net
An antique bottle and old bottles forum for collectors, diggers and traders.
http://www.antique-bottles.net

Book Talk Forums
Forums for discussing literature of all kinds, fiction and non-fiction.
http://www.booktalkforums.com/

Forum Software
The easiest way to add a Forum to your website. No coding, software, or servers. Create a website Forum in seconds!
http://www.websitetoolbox.com/forum-hosting/forum-software.html

Grunge forum
Discuss Nirvana, Alice in Chains, Pearl Jam, Mother Love Bone, and more.
http://www.grungeforum.com