vFabric SQLFire by Roberto Zicari · Published January 1, 2012 · Updated February 16, 2014 free trial download (LINK)
Download kdb+ (32-bit version) for free February 19, 2016 by Roberto Zicari · Published February 19, 2016
Apache Cassandra January 1, 2011 by Roberto Zicari · Published January 1, 2011 · Last modified February 16, 2014
InterSystems (Globals) January 1, 2012 by Roberto Zicari · Published January 1, 2012 · Last modified February 16, 2014