Twitter moved off to Java last I heard if I read this correctly. Not sure if they still use any rails. Source 1: http://techcrunch.com/2010/10/06/new-twitter-s

Twitter moved off to Java last I heard if I read this correctly. Not sure if they still use any rails. Source 1: http://techcrunch.com/2010/10/06/new-twitter-search/ http://techcrunch.com/2010/10/06/new-twitter-search/ Source 2: http://techcrunch.com/2011/06/01/new-twitter-search-relevant/ http://techcrunch.com/2011/06/01/new-twitter-search-relevant...