FOAF (Friend of a Friend)

FOAF, or Friend of a Friend, is a vocabulary and format used to describe people and their social connections on the web. It enables individuals to create their own personal profiles, including information about themselves and their relationships with others. This structured data can be shared and understood by different websites, allowing for a network of interconnected profiles. FOAF is often used in social networking, making it easier to find and interact with friends, while also facilitating data sharing between systems in a way that machines can understand.