bbPress is a WordPress plugin that enable you as an WordPress administrator to add a full Forum server to your site.
I am testing it out now, and will install it soon on our Multisite WordPress solution.
bbPress is promising, and because it can be used in a WordPress context, you can benefit regarding spam issues if you have Akismet spam control enabled.
Also, if you already are an WordPress administrator, creating Forums and Topics is like making Pages and Posts.
I had a problem to get the bbPress Forum to work. I only got: “Can’t find the page 404” and “Sorry, this is embarrising”.
The solution was to go to:
Setting – Permalinks
That was it 🙂 Nothing more to it. Just the visit fixed the problem.
You can check the usage Forum here:
http://helge.w.uib.no/forums/
Or click on one of the Forums on the right sidebar