I use Shazam as a kind of "music bookmarking" service. I hear a track I don't know, and I Shazam it to identify the track and it's saved into the list for later

I use Shazam as a kind of "music bookmarking" service. I hear a track I don't know, and I Shazam it to identify the track and it's saved into the list for later. That's pretty valuable data for Shazam.