volt.fm is a website that lets Spotify users see their stats (top artists, songs, genres), compare them with their friends, promote their playlists, and discover new music.
I've added these feature to the website in the past month:
One of my biggest golas with volt.fm is to help users share and discover new music. So I'll be building a few cool features in that direction in the upcoming weeks.
Advertise on the volt.fm newsletter
Every month, I send an email to all the users and report their stats. And they love it! If you'd like to promote your service/product to this large community of music lovers, let me know.