Yoko Harada has 2 videos available on Confreaks.TV. Their most popular video is Datomic, from Ruby, from Rails which has been viewed 2,246 times since it was posted on 04/27/2013.
Datomic, from Ruby, from Rails at RailsConf 2013 2,246 total views
RubyGems to All JVM Languages at Ruby Conference 2010 1,654 total views