Tsu is a new and innovative concept. It is based upon the remark that social networks like Pinterest, Facebook, Twitter and else are becoming huge thanks to user generated content. They monetize their size and reach with advertising and keep 100% of the proceeds for themselves. TSU changes this. You post and connect with your friends but you get 90% of the advertising revenues generated by the network. You are also paid when you invite friends. TSU has grown 10x faster than Facebook within a comparable time frame and already counts millions of users. It's a new interesting concept. If it will stay and thrive is still too early to say, but it is important to know about it and use it for Marketing or new income source.