http://www.wikistc.org/wiki/Main_Page a free repository of knowledge in Subversive Technologies & Countermeasures
http://www.rubyinside.com/19-rails-tricks-most-rails-coders-dont-know-131.html
http://www.digitalmediaminute.com/article/1816/top-ruby-on-rails-tutorials
http://homepage.mac.com/chrispage/iblog/C42511381/E20060806095030/index.html