Since
www.tremwiki.com is already far superior to SatGNU in the amount of content it has (no offense meant), I propose you guys focus on writing and organizing there.
There are too many sources for Tremulous information right now, and none of them has it all. I'm listing Tremwiki as the place to go simply because it's currently the most comprehensive source. If we could condense the manual, the MG wiki, the SST wiki, tremulous.h, SatGNU, and the hundreds of other guides on Tremwiki, that would really be awesome and useful.