3 ms·Ask HN: What are examples of 'open' social networks?2 points by AlexMuir 16y agoBy that I mean somewhere that you connect with people you don't know - as opposed to capturing your existing social group (Facebook, LinkedIn).AlexMuir 16y agoTwitter is one.AlexMuir 16y agohttp://www.HackerNewsers.com http://www.HackerNewsers.com