Build Your Own Ruby on Rails Web Applications
Build and deploy a fully-featured Web 2.0 application using Ruby on Rails. Learn best practice approaches to web application development. Use Rails’s Ajax features to create slick interfaces. Download this free Ruby on Rails book Build Your Own Ruby on Rails Web Applications book free of charge before December 1st 2007.
Use the following url to access the free ebook Build Your Own Ruby on Rails Web Applications .
http://www.sitepoint.com/books/rails1/freebook.php