Adoption of Ruby by Japanese Businesses

The first Ruby related event I attended in Japan was [Ruby Kaigi 2007](http://jp.rubyist.net/RubyKaigi2007/). At the conference, from talking to other developers, I was surprised to learn that despite them being passionate about Ruby, they weren't using Ruby at their day job. Since then, things have changed, and today most Ruby developers I talk to at events are using Ruby professionally as well.

[suginoy]

RubyKaigiスポンサーの変遷を分析