Here's the list and the lessons from 12 social networks that failed over the last 20 years

Here's the list and the lessons from 12 social networks that failed over the last 20 years. The Gizmodo compilation includes early front-runners Friendster and Myspace, of course, along with more recent flame-outs Google+ and Vine. Along the way, there was Orkut, Bebo, YiYak, and others. Collectively, these social networking startups plumbed the market with value propositions that ranged from “the anti-Facebook” to “completely anonymous” and “dating sites in disguise.” And all of them failed. This historical perspective is a reminder of just how hard it is to build the critical mass for a successful social network, which makes TikTok’s one-year anniversary earlier this month and its 1.0 billion plus app downloads that much more incredible. Gizmodo