How to package helper methods as plugins, which shows basics of making any kind of code-based plugin.

How to turn Rails programs into standalone programs, via Tar2RubyScript and RubyScript2Exe; not the proper way to deploy Rails programs on production servers; by Erik Veenstra.

Article presents best ones that Ideacodes LLC web consultant Max Kiesler found over the last year of many hours searching google, del.icio.us, digg, etc., looking for usable and relevant examples.

Treats some more complex parts of Web application programming, in simple style; text, screenshots, diagrams, code samples.

Learn in simple, easy steps: installation, framework, strengths with examples, action pack, action view, active record, scaffolding, migrations, controller, views, layouts, AJAX. Free. Tutorials Point.

RoR training classes, introductory and advanced; taught by David Alan Black. Raleigh, NC, USA.

Free printable RoR cheat sheets in PNG and PDF format.

List with descriptions, links, many forum comments. [Digital Media Minute]

Detailed tutorial; text, code samples.

Practical introduction to features: command-line options, syntax, built-in variables, functions, many commonly used classes and modules. [Marakana Inc.]