Off topic, but you're building a like-system (I have a part-time hobby one I've been sort of working on too) and I just wanted to wonder how you decided to go ahead?
The biggest concern I had was that the market is saturated with solutions that don't work because of disinterest, and anything I made could be beaten well-enough by Facebook in a good week's work. Sure I had a couple of edges but I couldn't spot the edge that would fix everything, and when I found a local competitor (I live in a pretty small city with minimal startups) I was convinced that everyone must be working on this.
So.. long story short I'd love to hear how you decided this was the thing to work on and how (without giving too much away) you hope to overcome the problems for your product's sector.