www.pronq.com/AgileManager The Lean, Mean, Scrum Machine. Try Agile Manager for Free Today!
ipd.cdm.depaul.edu/ Ruby on Rails 8-Week OnLine Prgm. Apply Now for April Classes.
www.rallydev.com/ Build Your Agile Business. Download Your Free Software Trial
How I did it: I read it in the bath mainly and on Sunday evenings. I kept pestering a developer friend with questions and he would point me to resources. You need to read the whole book to understand what it's about really unless you are already a developer or programmer.
Lessons & tips: There are loads of resources on the web now and the second edition is out now so the first one is a bit outdated.