The social media industry is still nascent, it takes a lot more time than Facebook and Myspace have had to grow an entire market segment. Eventually we'll see a plurality of options and the ability to move between them with relative ease. But it's already easy to ignore Facebook, I didn't think that would happen for at least another decade.

In fact, the only reason I'm still on it is because it maintains a network of former friends and contacts that no other service has been able to offer. Make no mistake, Facebook is struggling for relevance in an age where the next generation has already moved on to Snapchat and friends.

I don't think any of them are going to emerge dominant, but if Facebook is smart, it'll use it's remaining heft to build a true platform instead of trying to keep going as an aggregator.