Agile Web Development with Rails
   Dave Thomas, Mike Clark, David Heinemeier Hansson, Leon Breedt, Thomas Fuchs, Andrea Schwarz; Pragmatic Bookshelf, 2006, ISBN 0977616630. Thorough guide, from Agile Programming perspective.
   http://www.pragmaticprogrammer.com/titles/rails/

Engine Yard
   For clients developing critical Rails apps, who don't want to handle deployment, or hiring IT staff to manage servers, and want Rails-based 24/7 operation support on reliable infrastructure, and scaling from 10 to 1,000,000 users. Folsom, California, USA.
   http://www.engineyard.com/

Err Free Consulting & Development
   Ruby on Rails consultancy; by part owner of Err the Blog.
   http://errfree.com/

FreeOnRails
   Free RoR hosting, official rails mailing list forum gateway.
   http://www.freeonrails.com/

HotScripts.com: Ruby on Rails
   Links to RoR scripts, programs, tutorials, books, websites.
   http://www.hotscripts.com/ruby_on_rails/

MonoRail
   Model View Controller Web framework inspired by Action Pack. This way of development is productive, intuitive, easily testable. Was Castle on Rails. Part of Castle Project.
   http://www.castleproject.org/monorail/index.html

Pragmatic Studio
   Courses: RoR, Advanced Rails, Production Rails, Ajax. Highly qualified instructors.
   http://pragmaticstudio.com/

Project RIDE-ME
   Rails IDE - Minus Eclipse: Windows-based development environment for streamlined RoR work, for developers migrating from Microsoft development platforms; has familiar Visual Studio look. Open source.
   http://www.projectrideme.com/

RailRoad
   Provides a class diagram generator.
   http://railroad.rubyforge.org/

Rails Day 2006
   Programming contest, to write an RoR application in one day, on June 17, between 12:00 am Eastern Daylight Time, and 11:59 pm EDT.
   http://www.railsday2006.com/

Rails Forum
   Help and support for Ruby on Rails programmers; from beginners to seasoned veterans.
   http://www.railsforum.com/

Rails Recipes
   Chad Fowler; Pragmatic Bookshelf, 2006, ISBN 0977616606. Shows how experts have already solved many problems, from latest Ajax effects to development time-saving automation tips.
   http://www.pragmaticprogrammer.com/titles/fr_rr/

Rails411
   One stop RoR resource directory: tutorials, conference and workshop listings, forums, RoR hosting.
   http://www.rails411.com/

Ruby for Rails: Ruby Techniques for Rails Developers
   By David A. Black; Manning Publications, 2006, ISBN 1932394699. Shows what one is doing when writing Rails Web applications, and how Ruby methods expand limits of what can be done in Rails.
   http://www.manning.com/black/

Ruby on Rails Bootcamp
   Intensive 5-day course for developers, web designers, project managers interested in creating database-driven web systems. Links to course reviews.
   http://www.bignerdranch.com/classes/ruby.shtml

Ruby on Rails Training Course UK
   Learn to develop commercial Web applications, and about language and framework, using practical hands-on exercises throughout. Public courses in London, custom on-site courses at offices.
   http://www.jbinternational.co.uk/ruby-on-rails-training-uk.html

Snippets: Rails
   A collection of useful Rails code snippets from the DZone Snippets website.
   http://snippets.dzone.com/tag/rails

Wikipedia: Ruby on Rails
   Encyclopedia article about the web application framework, with history, philosophy, and a technical overview.
   http://en.wikipedia.org/wiki/Ruby_on_Rails

Working With Rails
   Open database where anyone can add or remove information about individuals in the RoR community: search, explore, see who's who.
   http://workingwithrails.com/