https://ruby5.codeschool.com/episodes/575-episode-537-march-20th-2015 Neural Network Video Listing | Coursera gems nmatrix, fastest-csv, chunky_png Regression Driven Tests How you test Regression driven testing is a good place to start que…

https://ruby5.codeschool.com/episodes/574-episode-536-march-17th-2015 Release Candidates changes to action mailer, action pack, action view, active model, active record and active support Callback Gotchas how ActiveModel callbacks can resu…