Geoffrey Grosenbach has continued his series of Peepcode screencasts with Capistrano Concepts, a screencast that walks you through the world of Capistrano, automated deployment systems, and server maintenance using Ruby. The screencast is an hour long and shows you how to use Capistrano and develop your own tasks. The screencast costs $9 to download.

Geoffrey has also released a free screencast demonstrating how to build a full Rails stack on Ubuntu. It's only ten minutes, but covers all of the basics to get your Ubuntu installation up and running with Rails.