Analytics - ElasticSearch references

good:
http://blog.qbox.io/using-elasticsearch-in-e-commerce-part-2-simple-analytics-with-aggregations

http://www.slideshare.net/tomzeng/using-elasticsearch-with-rails?next_slideshow=1
(sample inserts & queries..status check & health...API listing...Query DSL...rivers)

http://www.slideshare.net/clintongormley/scaling-realtime-search-and-analytics-with-elasticsearch
and https://www.youtube.com/watch?v=o6lSeNatVFM

http://exploringelasticsearch.com/modeling_data.html

decent:
http://www.slideshare.net/dnoble00/scaling-analytics-with-elasticsearch

http://www.michaelpollmeier.com/elasticsearch-case-study/

eh:
http://www.slideshare.net/AndrewClegg1/scaling-elasticsearch-for-multiterabyte-analytics