Elasticsearch Aggregations: new in Elasticsearch v1.0 beta2

I'm getting excited about Elasticsearch version 1.0 - I've been playing with the latest beta version, and have written a quick post about the new Aggregations feature. It's a real game changer: If you use ES for analytics or use Facets, then aggregations will be something that will interest you:

http://chrissimpson.co.uk/elasticsearch-aggregations-overview.html