I need to show some Rails projects. Examples?

I need to show to some people some Rails projects so they can see the
power of Rails, I mean, what Rails can do. Any good examples?

It’s polite to do a google search before asking, mr. John Smith

http://wiki.rubyonrails.org/rails/pages/OpenSourceProjects
http://portal.insoshi.com/

http://www.google.com/search?rls=en-us&q=ruby+on+rails+open+source+projects&ie=UTF-8&oe=UTF-8