Couchbase customer presentations (LinkedIn, Orbitz, McGraw-Hill, and others.) by Roberto Zicari · Published January 1, 2013 · Updated February 16, 2014 How they are using Couchbase at their organizations. You can view them here: LINK
Evaluating Apache Cassandra as a Cloud Database June 5, 2014 by Roberto Zicari · Published June 5, 2014 · Last modified February 12, 2015
Ultra-High Performance NoSQL Benchmarking: Analyzing Durability and Performance Tradeoffs January 1, 2013 by Roberto Zicari · Published January 1, 2013 · Last modified February 16, 2014
The Forrester Wave™: NoSQL Document Databases, Q3 2014 October 6, 2014 by Roberto Zicari · Published October 6, 2014