RubyGems
ZoomInfo API Ruby Wrapper
A simple, flexible, extensible, and liberal RSS and Atom reader for Ruby. It is designed to be backwards compatible with the standard RSS parser, but will never do RSS generation.
Lightweight mutation testing ... with ZOMBIES!!!
Library and command-line client to manage authorized_keys files
Map US postal codes to US timezones
ActiveRecord/Rails Sphinx library
Ruby bindings for libzip.
ZenTest provides 4 different tools: zentest, unit_diff, autotest, and multiruby
Rack HTTP server without a fork stuck in it
A two-phase delivery agent for ActionMailer
YARD plugin for parsing sinatra routes
Transparently switch between like and ilike in ActiveRecord conditions
yore (as in "days of yore") is a user data management utility for web applications.
Interact with RightMedia's YieldManager API and Reportware products
Fetch some (possibly) useful info from your Yammer domain
Ruby core documentation yardoc database
Aids in the documentation of Ruby Objects derived from GObject
Documentation tool for consistent and usable documentation in Ruby.
Yandex.Inflect webservice client (Russian language inflection)
Rails plugin for querying Yahoo Ads for estimated CPC, impressions, and clicks
This is using OpenOffice SpreadSheet document file via ruby
yaml_db allows export/import of database into/from yaml files
A Ruby object-oriented interface to the Yahoo! Weather service.
Ya is an authentication system uses a YAML file to store credentials
Ruby library for parsing stats from Yahoo! Sports pages
Ruby wrapper around the ifconfig command.