Integrates ActiveRecord with cache stores provided by Rails.cache, incluing memcached

Caliper your rails applications

Provides generated HTML data for Rails applications

Dedicated classes to isolate redis logic in rails.

canvas server exporting for Rails

CAIL Systems Ltd's 3 of 9 Barcode font with asset pipeline for Rails >= 3.1

Blog engine for Ruby on Rails.

Rails blogging engine

Fast, light-weight, session-based, redis-backed Rails caching.

Rails generators to facilitate development.

Caching utilities built on top of Rails caching

A nice extension for quickly incorporating icalendar imports with default views (Rails 3)

A Rails engine for quick, convenient caching.

Profile based authorization for ruby on rails

Capgem is an extension to Capistrano which builds your Rails app to a gem which can be installed anywhere.

HasAccountsEngine is a full featured Rails 3 gem accompanying has_accounts with controllers, views...

Set of optimizations for rails deploy process.

Provides generated HTML data for Rails applications.

Hominid is a Rails GemPlugin for interacting with the Mailchimp API

That gem includes capistrano recipes to install and configure ROR production environment with RVM, Nginx, Passenger, Postgresql and Postfix.