Thread: Whats The Best Wiki Software Available?

I would recommend Banana Dance:

Banana Dance Community » Welcome » Banana Dance

The program is still in beta and pretty new, but it is a solid and reliable program nonetheless. The interface is clean and straight-forward and the program runs well. It's like a combo wiki and CMS.

Most wikis are really designed for public use, the usage patterns for which don't always apply the same as they with a more private enterprise wiki. MediaWiki and Twiki, as general open source platforms, have some advantages in configuration.