I’ll be fair with you and tell you right out that I am biased in this matter, but I still have to say:
GO BUY THE RUBY COOKBOOK RIGHT NOW!!!
Yes, I wrote six of the bazillion recipies in the book (on DRb and Rinda), but I do not make money when they sell copies, so you can trust what I am saying here.
Basically we are talking about nearly 1,000 pages of EVERYTHING on Ruby. I don’t care who you are or what you do with Ruby these guys wrote something about your problems. How cool is that?
These recipes are just loaded with code, tips, links to related resources, etc. They even manage to be funny in places. (You will laugh at the dinosaur ad.)
Why are you still reading this?! Get up. Go outside. Hail a cab. Get yourself to a bookstore and pick this up! GO!
(If you have back problems you shoudn’t be carrying books this big, trust me. Instead you can grab the PDF version O’Reilly just made available.)