forum engine

[wepouys]

Hello !
Sorry to bother you. I found this forum when looking through google for forums to use. I need
to install a forum on my website but I cannot find where it is sold.

Where did you get this one

Thanks for any assistance

[ranger]

Physics Forums uses vBulletin.
http://www.vbulletin.com/

There are a bunch of others:
http://www.simplemachines.org/
http://www.phpbb.com/ (free)
http://getvanilla.com/ (free)
http://www.jivesoftware.com/products/forums/
And more...

[sephirothrr]

IPB (Invision Power Board) is also quite good.

[z-component]

I've used phpBB, and I liked it.

[DaveC426913]

Does anyomne know/recommend a CMS/Forum/BB engine that's built on VB.NET? And is free?