Welcome to the Toronto meetup group for elasticsearch!
I used to work for the Netherlands Institute for Sound and Vision, the national audiovisual archive of the Netherlands and one of the largest archives in Europe. The institute was one of the early adopters of elasticsearch and used it to power the archive's search engine (if you have a Dutch background or if you are into Dutch cultural heritage, you might enjoy this site: http://in.beeldengeluid.nl ).
When I moved to Toronto I could not find an elasticsearch meetup group and decided to start one. I'm happy to share my experience with mappings, settings and bringing an elasticsearch cluster to production, and let the community take it forward. You all use elasticsearch, don't you?