Google keeps ex-Googlers close by investing in their startups

Not long ago, Google had one of the biggest social networks — at least in Brazil and India.Social site Orkut had a sizable presence in those two countries but not elsewhere, leading Google to shut its doors in 2014. The founder, Orkut Büyükkökten, is trying again with Hello Network, a new network based on interests.Hello is not part of Google — but it’s got some Google cash.According to multiple sources, Google has recently backed several early startups from form