1. Why’s (Poignant) Guide to Ruby
A tutorial like you’ve never seen before, complete with talking foxes and examples based on chunky bacon. Also, keep an eye out for the most entertaining side bars you’ll ever come across.

2. More great tutorials:

• Nuby on Rails.com
• Really Getting Started in Rails

3. Ruby on Rails on Hotscripts.com

4. PHP vs. Ruby on Rails. An evolutionary story of a Web Developer and his tools- A great comparison of the super-hero abilities of RoR and PHP. At the very least, this is a good primer on the differences (and similarities) of both.

5. Ruby User’s Guide

6. The Complete Ruby on Rails Manual

7. For more links, screencasts, and other RoR goodness, go to Ruby on Rails.org