As if there weren't enough social media sites to keep track of, you can add tsu.co to the list. It's a similar idea to Facebook, but with a definite advantage: where FB does their best to monetize everything to benefit their shareholders, Tsu actually gives its users a cut of their ad revenue. Imagine that, making money from page views!
I'm still on the fence about adding another social media platform to my life. So I'm going to give it a month or so to see if it's worth the investment of time. But if you'd like to check it out, you can follow me here: https://www.tsu.co/CullenPix. Visually it's very much an Instagram clone.
Here's an article from Huffington Post about Tsu.