awesome-rails

Ruby style guide

Community-driven Ruby coding style

Rails style guide

Community-driven Rails best practices and style for Rails 3 and 4

RSpec style guide

Better Specs { rspec guidelines with ruby }

An API Documentation Browser and Code Snippet Manager. Available for MacOS

A simple offline API documentation browser inspired by Dash (OS X app), available for Linux and Windows

: A Ruby API reference doc

a "developer's notebook" documenting some guidelines, techniques, and ideas for applying classic object-oriented thought to Ruby on Rails applications

a thorough guide to the world of Ruby API in C

a guide through many good practices in Testing Rails app with RSpec

: Semi-daily reading suggestions

: 700+ blogs about Rails and Ruby

: Contains many advanced posts on techniques using in Ruby

: One of the best pubic archives on advanced Ruby