> social media platforms are extremely durable until the next hot new thing comes along. This is exactly why I sold my Facebook shares a few months ago. The ne

> social media platforms are extremely durable until the next hot new thing comes along. This is exactly why I sold my Facebook shares a few months ago. The next Instagram might not sell to Facebook so cheaply, or the sale might well be blocked by regulators. Having said that, I still have a large position in Twitter because the brand seems a lot more durable.