Here is a Wiki for Ruby programmers:
Here is the online version of the book Programming Ruby:
http://www.rubycentral.com/book/
Seattle Ruby programmers -- we have a couple Python folks who are interested in Ruby. If you want to participate in our users group, please check out the MembersPage and the MailingList.
There's also SeattleRubyBrigade, a Seattle Ruby group. --AdamFeuer
I would highly recommend joining Seattle.rb's mailing list. It's (un/fortunately) very low bandwidth. --RyanDavis
Since you have this page, and you're in Seattle, I hope it's not tacky of me to mention that this year's Ruby Conference (http://www.rubyconf.org) will be in Seattle. Hopefully, some of you can make it. Watch http://www.rubyconf.org in the next month or two for updates if you're interested. -- Chad Fowler
See also: PerlPythonRuby