Another cool resource: cheat sheets features close to 100 command-line cheat sheets for Ruby and associated coding - the one on Capistrano helped me out immensely tonight, and I've got my eye on a couple of others (TextMate for Rails, for example). You can access them all online in HTML glory, or


 $ gem install cheat

will bring it into your local system where you can access the cheat sheets directly from the command line.