Couchbase: Understanding group_level in View Queries with Couchbase Server 2.0 by Roberto Zicari · Published January 1, 2013 · Updated February 16, 2014 LINK
The Hardest Problems in Data Management January 1, 2012 by Roberto Zicari · Published January 1, 2012 · Last modified February 16, 2014
Positioning CortexDB in Hadoop Data Architectures October 21, 2014 by Roberto Zicari · Published October 21, 2014 · Last modified February 27, 2015
Scale Out vs. Scale In- a face-off between Cassandra and Redis September 1, 2010 by Roberto Zicari · Published September 1, 2010 · Last modified February 16, 2014