http://dennou-kurage.hatenablog.com/entry/2013/01/26/214422

http://jp.techcrunch.com/archives/20130124backed-by-y-combinator-and-google-ventures-circuithub-aims-to-be-a-one-stop-shop-for-electrical-parts/

http://blog.practical-scheme.net/shiro/20130125-caring