Act-as-Buddy is a gem to allow any model to implement self relation. For eg: the friendships of a user can be implemented easily by self relation technique of act_as_buddy. Any Model can be buddied or lopped on to itself. Main uses would be for Users create friends etc.. Eg: User has many friends...

A specialized Amazon AWS gem for finding Album Art running on top of the 'sucker' gem

Ruby interface to the AMEE carbon calculator

apirunner is a testsuite to query your RESTful JSON API and match response with your defined expectations

Appjam is iOS code repository, including framework, snippet, generators, etc.

Manage CSS/JS assets as dynamic resources rather than static files

Tools for attribute tracking like Hashes with dirty tracking and events, for building hybrid models and generally going beyond what's provided by your local ORM/DRM, while allowing you to expand what you can do with them, live without them, or roll your own

That's all folks

Library for parsing and generating beerxml (http://www.beerxml.com/). More than that, this library also contains various methods for doing calculations on beer ingredients and recipes, among other helpers.

A fast parser for FastQ files

This bio-gem facilitates the creation of pretty, publication quality SVG images from feature data.

Easy to use Ruby interface to the Bitcoind JSON-RPC API

Hurrah! Another pointless text format to parse.

This plugin extends bookyt with project management functionality.

Adaptador para el Web Service de Facturacion Electronica de AFIP

Hybrid object builder/factory.

Build like you code - now supporting ActionScript 3 & Flex

Caldecott Client HTTP/Websocket Tunneling Library

Permit classes and engine for CanTango

Roles and Role groups for CanTango