I'm in process of building a list of good Tips and Tricks received from different Rails Developers. Till the date I could recive only few which I'm going to list down here.
If you have any write-up on Ruby on Rails, then please send it to me at email@example.com and I will share it with the world using this section.
Ruby on Rails 2.1 - RMagick
Rails 2.1 - HTTP Basic Authentication
Exception Handling in Ruby on Rails
Understanding Routes in Rails 2.1