I'm looking to replace MoinMoin as the platform for the Nginx wiki. I've tried Confluence, which is pretty flashy but way too heavy (~1GB of RAM before any pages are added).

I'm considering MediaWiki, after all, it's well tested and it should be familiar to anyone who's used wikipedia.org (i.e. everyone). I used to be biased against it because it's written in PHP, but I'm over that.

I've also considered just moving the whole thing onto Google Sites (and that's still an option).

Nevertheless, if anyone has any suggestions I'd love to hear them.