rather than piggybacking on my other thread, I wanted to ask another question, namely which version control system to take for collaborative writing projects.
Emacs rules! (oh, sorry wrong topic, but expect the same results)
I have used subversion for several years, and it works. However, I think it can be overkill for smaller projects. For my personal use I have been using Bazaar (bzr) for about six months and really like it. It is simple to set up, works cross-platform, and is decentralized (but can be used with a central server).