Simple, easy to use GData API that supports OAuth, Ruby 1.8/1.9 and uses Typhoeus as an HTTP client

debug with exceptions (because it's fast)

A SPARQL-driven modeling toolset for semantic models.

CSS/JavaScript Toolkit

A collection of Geektool scripts wrapped in a gem.

This is meant to be used with Geektool to display the number of emails in your inbox that you need to handle

Allows a much easier way to select/deselect a subset of related gems to include in a project

even less to see here

Tools for hacking and patching gems

gemignore allows you to automatically insert a wide range of preset .gitignore snippets into your .gitignore files

Command-line utility to perform queries on the gem index that are useful for detecting MITM attacks.

I use this gem to teach about gems and contributing to open source.

This requires some thought. isn't it?

Adds area and perimeter methods for common shapes.

A module which allows the GENE gyrokinetic code to be run using the CodeRunner framework.

Super easy adjustable form builder with formtastic style DSL

Takes a state table where the following are defined: state, input+conditions, accumulate-action, pre-transition-actions, and transition-to. It takes that state table and generates very fast parsers. Similar to Ragel. Currently only outputs pure Ruby.

A Sinatra RESTful web-service for sharing RDFized genomic data.

Geocode a text address.

This gem consists two additional geocoders for geokit, Yahoo! PlaceFinder and Google V3. And add support for caching using api_caching gem.