GLASS a free ODBMS for the Seaside web framework by Roberto Zicari · Published January 1, 2009 · Updated February 16, 2014 GemStone Systems GLASS: GemStone, Linux, Apache, Seaside, and Smalltalk. LINK
EyeDB Object Oriented Database Management System January 1, 2009 by Roberto Zicari · Published January 1, 2009 · Last modified February 16, 2014
Caché Post-relational Database January 1, 2010 by Roberto Zicari · Published January 1, 2010 · Last modified May 9, 2014
The ZooDB Object Database January 23, 2015 by Roberto Zicari · Published January 23, 2015 · Last modified May 17, 2015