Part of the Seattle.rb Project:

ar_mailer - ActiveRecord Mail Queue
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box_layout - ASCII to HTML table layout
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cached_model - an ActiveRecord abstract model that caches records in memcached
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change_class - Lets you set the class of an object. Use at your own risk.
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firebrigade_api - API for the Firebrigade service
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flay - analyzes ruby for structural similarities.
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flog - Ruby Sadism and Pain Reporting
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gauntlet - pluggable means of running code against all the latest gems and storing off the data.
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heckle - Unit Test Sadism
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hoe - extending rake to provide full project automation.
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Hoe Down! See who's using Hoe
icanhasaudio - "I is in ur computer, decodin ur music."
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ImageScience - Hate RMagic? Get Science! ImageScience!
Notes
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IMAPCleanse - IMAP automation for large lists. Automatic scanning and purging.
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mem_inspect - ObjectSpace.each_object on crack
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memcache-client - client for memcached
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mogilefs-client - client for mogilefs
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ograph - generates dot graphs of your objects' connections
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png - pure ruby PNG implementation
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production_log_analyzer - analyze ActiveRecord logs.
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rails_analyzer_tools - stuff n stuff
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RailsRemoteControl - modify and monitor a live Rails application
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rbayes - an email-focused bayesian filter
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rc-rest - a framework for writing REST API wrappers
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RingyDingy - a little boat that keeps your DRb service afloat!
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ruby2ruby - generates readable ruby from ParseTree
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Sphincter - AR Sphinx add-on, with smart defaults
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SuperCaller - caller() on steroids
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SyslogLogger - Logger that uses syslog(3)
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tidy_table - convert an array of structs (such as an ActiveRecord object) into an HTML table.
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tinderbox - "I'm gonna light you on fire."
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un - #unextend and #uninclude
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UPnP - Stuff so Eric can watch porn via his PS3
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UPnP-ConnectionManager - Stuff so Eric can watch porn via his PS3
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UPnP-ContentDirectory - Stuff so Eric can watch porn via his PS3
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UPnP-IGD - Stuff so Eric can watch porn via his PS3
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UPnP-MediaServer - Stuff so Eric can watch porn via his PS3
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