February 2012: The California Digital Library (CDL) and the Public Knowledge Project (PKP) have announced a partnership that focuses on supporting open source publishing infrastructure. As a result of the partnership, CDL will assist PKP's "ongoing development and support of its open source software suite" which includes Open Journal Systems (OPS), Open Conference Systems (OCS), Open Harvester System (OHS), and Open Monograph Press (OMP). For more information, see the joint press release (PDF).