Unobtrusive nested forms handling, using jQuery. Use this and discover cocoon-heaven.

A compiler for a Clojure-like programming language on the Rubinius VM

Works with Facebook.

Autoreload automatically reloads library files when they have been updated. It is especially useful when testing stateless services such as web applications.

Babylonia for rails lets your rails users translate their content into their languages without additional tables or columns in your tables

This gem is a quick way to add database-backed file storage to a Rails application. Files are stored in a dedicated table and de-duplicated.

Convert between latitude/longitude and Maidenhead Locator System strings

Track the top (or bottom) N keys added to a list, and discard the remainder.