RPI's Peter Fox and Anirudh Prabhu were invited to speak at the Earthcube/NSF joint CA-OKN workshop at the Earth Science Information Partners (ESIP) 2020 Winter Meeting on January 6, 2020. Fox discussed (open) knowledge networks and the balance needed between implementability, maintability, and expressivity as well as thought into rule execution. Prabhu walked through several existing tools and technologies used in open knowledge networks.