QuePiensas

Spanish (failed) social network fully integrated with Facebook. It alows users to express their opinion on their friends. I'm still sure that this idea can become popular, it's just that we didn't achieve the right user experience. Building everything from scratch was a serious effort that helped us learn a lot, but made development too slow. We had no reusable CSS or components, no MVC architecture, nothing really... At some point I will surely give it another go, although this time as an app, they have far more potential I think. It was build from scratch by [Jaime Caballero](http://jaicab.com/) and me. It uses jQuery, lots of (awful) AJAX and a PHP backend.