08:50Witness HistorySix Degrees - the first online social networkBBC World Service Duration: 9 minutes Fri 31st May 2019, 08:50 on BBC World Service OnlineAvailable for over a yearListen nowAndrew Weinreich founded the first online social network in 1997. Show more GenresFactualHistoryFactualScience & NatureScience & TechnologyFormatsDocumentariesBrandWitness History Source: BBC Online