Double Shot #694

Hopefully Tuesday will be less Monday than Monday was.

jsPlumb - Moveable boxes and connecting lines in jQuery.
state_machine 0.9.0: Locked and loaded - Fresh release for this plugin, with Rails 3 and a bunch of other integrations.
Installing Rails 3.0 Beta 3 on Ubuntu using RVM - A walkthrough of getting a working set of bits into place.
rpg - Ruby package management system to replace gems.