Alternatives to Google Docs (online word processors)
I've been working on a chapter for Charlie and Pavel's collection and came across 5 Great Alternatives To Google Docs You Should Consider by David Pierce. I hadn't heard hardly anything about these before reading the article, and one is even made by Adobe (Buzzword). One called Zoho even gives you a personal wiki! Etherpad gives you real-time editing (this is something I've been wanting for a long time). I haven't been able to fully explore these yet, but will definitely be checking them out soon.
BTW, the site also has some great cheat sheets available for Windows, Mac, Firefox, and many others.