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 While I do have backups, the original source code is in a very outdated state so I currently don't feel it makes sense to try and get it running again.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.

Update June 13th: I'd like to invite you to join the discussion on the future of the Toolbox on github. You can also get in touch directly on Twitter.

Christoph
 Score 81.94

Active Record

Databases on Rails. Build a persistent domain model by mapping database tables to Ruby classes. Strong conventions for associations, validations, aggregations, migrations, and testing come baked-in.

 Rubygem activerecord
 Github rails/rails
 Score 7.51

ORM Adapter

Provides a single point of entry for using basic features of ruby ORMs

 Rubygem orm_adapter
 Score 6.1

Sequel

The Database Toolkit for Ruby

 Rubygem sequel
 Score 1.98

DataMapper

DataMapper core library

 Rubygem dm-core
 Score 1.63

squeel

Squeel unlocks the power of Arel in your Rails application with a handy block-based syntax. You can write subqueries, access named functions provided by your RDBMS, and more, all without writing SQL strings. Supporting Rails 3 and 4.

 Rubygem squeel
 Github ernie/squeel
 Score 0.84

Ruby Object Mapper

Persistence and mapping toolkit for Ruby

 Rubygem rom
 Github rom-rb/rom
 Score 0.05

og

Object Graph (Og) is a state of the art ORM system. Og serializes standard Ruby objects to Mysql, Postgres, Sqlite, KirbyBase, Filesystem and more.

 Rubygem og