We had a great ELK Meetup on Wed 5/21/2014 at LinkedIn. The recorded video is available here.
http://www.ustream.tv/recorded/47864947
We had Kurt Hurtado, one of the logstash dev, speaking on ELK in the DevOps Environment. Then a nice long Q&A session after, joined by Uri Boness, one of the Elasticsearch core dev.