No Callbacks, No Threads - RailsConf 2010
Making the web fast(er) - RailsConf 2012
0-60 with Goliath: High performance web services
0-60 with Goliath: Building High Performance Ruby Web-Services
Intelligent Ruby + Machine Learning
Measuring Engagement of the Social Web: 2007-2009
Taming The RSS Beast
Pagespeed what, why, and how it works
Ruby in the Browser - RubyConf 2011
Modeling concurrency in Ruby and beyond
Real-time Ruby for the Real-time Web
Building Mini Google in Ruby
Lean & Mean Tokyo Cabinet Recipes (with Lua) - FutureRuby '09
Beyond 'gem install MySQL’ in Ruby
No callbacks, No Threads - Cooperative web servers in Ruby 1.9