Here come a couple of Sherlock search-plugin for RubyForge and the Ruby Application Archive:
- Rubyforge
(Rubyforge) by Pau Garcia i Quiles [last update: Sept 25th 2005] - RAA
(Ruby Application Archive) by Pau Garcia i Quiles [last update: Sept 25th 2005]
They work with Mozilla (Seamonkey, Firefox, etc), Safari and Konqueror.