I am currently working my way through “Agile Web Devleoment with Rails by Sam Ruby”. It’s a well written book which allowed me to installed Ruby + Rails easily without (so far) having to resort to Google to get things working.
One thing which I have done is order the book (paper and download) directly from the Pragmatic Programmer publisher. This book has changed over (in terms of Ruby / Rails folder structure) with the book being updated to reflect the modifications. Ordering directly from the publisher has allowed me to get these updates.