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
Eclipse Foundation: Indigo-CDO Model Repository January 1, 2011 by Roberto Zicari · Published January 1, 2011 · Last modified February 16, 2014
ConceptBase January 1, 2008 by Roberto Zicari · Published January 1, 2008 · Last modified February 16, 2014