This is the culmination of Ontology Summit 2013, a 2-day workshop and conference event at the Gaithersburg campus of NIST (US National Institute of Standards and Technology.) A very rich program was featured during the two days - among them were three keynote talks, reports and discussions on all the Track and Activities, and the presentation and formal adoption of the Communique. The program and archived material (agenda, slides, etc.) are be accessed by clicking on the links below.