Couchbase: Understanding group_level in View Queries with Couchbase Server 2.0 by Roberto Zicari · Published January 1, 2013 · Updated February 16, 2014 LINK
On Apache Cassandra 4.0 Q&A with Patrick McFadin September 29, 2021 by Roberto Zicari · Published September 29, 2021
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