Yep. There are huge advantages to a GitHub model over Wikipedia for collecting information.

Shameless plug, but highly relevant: I'm trying to make 'git as a platform' more accessible for non-programmers with a project I'm working on - http://www.penflip.com. Wrote about it in detail here: http://madebyloren.com/github-for-writers

Glad to discuss it further if anybody's interested.

Yeah, especially with Markdown integration, which makes incredibly easy for someone to host their own "information site" and make it look nice and modern. I wonder if Wikipedia would ever change their revision system in favor of git.