Not sure what your asking , but probably asking how to improve SEO on a forum? 1 - If you can (using mod_rewrite etc..) - Have forums posts like: http://forum.com/category.html http://forum.com/category/this-is-an-example.html 2. Title should contain the category name and post name... 3. Description could contain post name also... What s/w are you using for forum?
If you are using vB you can use vBSEO mod. For phpBB you can use this SEO mod, I haven't tried both of them. But have seen many people recommend them.
Yes, you can use various mods on the forums to make it SEO friendly. However, it is the link building / baiting that counts
My PHPbb is indexed pretty well, but I guess it's pretty niche. GoogleBOT likes it and keeps sluriping it up without any 3rd party mods.