Gollum - Wiki built on top of git

I started using the github wiki today and while i thought it was OK, it wasn't until i realized i could download it and modify it all locally that i began to believe it was awesome.

Gollum is the Ruby software that github uses as it's wiki system.  It's not 'immensely' powerful at this point but the fact that I can manage my wiki contents just like a regular git repository is extremely useful.  

Also, since gollum is just ruby and runs in Sinatra, I am able to run gollum locally on top of my local git repository clone of my real wiki to do full preview before 'pushing' the wiki changes to github. Pure awesomeness.

I've been wanting to do something like that at work.  We use confluence as a wiki and I would love to see it be our external documentation site. However, doing a mass upload of wiki documentation (like branching and merging/etc..) is not something confluence supports.  If confluence were built on top of subversion or git, then I'd be able to sell it easier to our documentation folks…  

For the time being however i'm just going to enjoy working with it on my github projects.