Google doesn't get social... that's all. They demand everyone that applies for a job knows algorithms, but they fail to understand that to nail social, they need to hire people with a different type of intelligence: emotional and psychological. People who know what makes other people tick. We human beings crave attention, impressing others, and thinking we're special. We don't give a damn about placing people in Circles - that's a problem you solve once you give what people crave, not a problem that convinces people to join your social network.<p>Google does need computer scientists but the company has enough of them. This isn't a knock against Google employees, but the vast majority of their employees know how to scale search engines, or write efficient code, or write the next generation NLP parser, but to get social right, those things are unimportant.<p>To create a great social network requires less technical expertise, and more getting the little things right. Think about LinkedIn: You can't help but tweak with your skills and experience so it looks impressive to you, and to others (even if they aren't recruiters). Think about how much people care about filling in their Facebook profile, and making it look good. Now look at Google+. It's TOO clean. It's TOO private. That's a great recipe for a search engine. A horrible recipe for a social network.