FOAF (2000-2015+) Friend of a Friend (FOAF): an experimental linked information system. FOAF is a computer language defining a dictionary of people-related terms that can be used in structured data (e.g. RDFa, JSON-LD, Linked Data). Status: in stasis FOAF specification - a computer language for people and machines. The original writeup from 2000 explains what we thought we were doing. Linked Data