This chapter will give you a long list of helpful links, and pointers to a few useful books. I've tried to categorize the books by main subject, and I hope most of the addresses are still valid when you read this. Remember that the absolutely best resource when starting out with Ruby is your local Ruby User Group (RUG). Many cities in both the United States and Europe have a group that meets up once or twice a month, where members share information and help one another with problems. You should search the Internet for the closest RUG to you; it can be invaluable.
These links are specifically about Ruby or Rails.
This is the main Ruby language home page. ...