Bad news. The server hosting The Ruby Toolbox went bust on the evening of June 7th. While I do have backups, the
original source code is in a very outdated state so I currently don't feel it makes sense to try and get it running again.
For the time being, here is a very stripped down version of the Ruby Toolbox's contents.
This Rails plugin extends ActiveRecord::Base to add automatic updating of created_by and updated_by attributes of your models in much the same way that the ActiveRecord::Timestamp module updates created_(at/on) and updated_(at/on) attributes.