Transferring an existing project to Rails 3 is not that hard, but it usually cannot be done in 5 minutes.
Hi, I am Jan. This is my old Ruby blog. I still post about Ruby, but I now do it on idiosyncratic-ruby.com. You should also install Irbtools to improve your IRB.
PlasmaRails.org
PlasmaRails.org is an online RDoc for Edge Rails, which is regenerated every day. It is based on sdoc with some custom css.
Update 06.06.2010: Relaunched with better stylesheets!