RailsClips offers free weekly RoR Videos
The online podcast service DevChat.tv hosts a number of great resources for developers & aspiring coders.
One such resource is the RailsClips archive full of videos and screencasts teaching Ruby on Rails.
It turns out that RoR is one of the fastest-growing backend languages for current web developers. This series is definitely worth your attention if you have the patience to try and practice Rails from scratch.
You can subscribe for free to get instant updates whenever new episodes are available. Currently it seems the RailsClips are released on a weekly basis and archived on the site accordingly.
Topics range from advanced tips like XML or JSON to a general discourse of Rails philosophy & code standards.
If you’re interested then check out the site and see what you think. Again all videos are free so you have nothing to lose but a bit of time.