Developer Works article on RDoc, WEBrick, dRuby, and REXML

http://www-128.ibm.com/developerworks/edu/os-dw-os-ruby3-i.html

Another Developerworks tutorial/article on Ruby. We’re starting to
get a pretty good selection there. You can get a listing of all Ruby
related Developerworks content here:

http://tinyurl.com/dbnxk