I'm not quite sure of some of these resources. They mention neither Rails Tutorial nor Rails for Zombies, and the wiki links send you [to blank pages](<a href="http://wiki.rubyonrails.org/rails/pages/HowtosInstallation" rel="nofollow">http://wiki.rubyonrails.org/rails/pages/HowtosInstallation</a>). They're more random than quality really.