@rrhoover Thanks Ryan!
I built it since me and my friends would send each other music links by mail if we really liked a track. The Gmail interface is kinda sub-optimal for this. So I built this as an interface around it.
I've seen many music bloggers and record label people use it, since they receive lots of demos in their inbox.
I personally like to go to the frontpage and click on other people's inboxes to discover new music from people who have completely different tastes than me.
This is really cool. May mention it in my music newsletter, Musicgeeks (http://musicgeeks.co), as a way to listen to what I've sent. Choosing which platform to share with subscribers is actually a challenge - some users use Spotify, some iTunes, some Soundcloud.