What's the song you played to death and then just quit on?
If you've been scrobbling a while, there's a whole list of these sitting in your history: songs with 10+ plays that Last.fm hasn't counted even once in the past year.
We run a site called ListenLab, and listenlab.fm/lastfm pulls exactly that list from your username. Most-played first, max two songs per artist so one album doesn't eat the whole thing. It reads your charts from Last.fm right in your browser.
The newer thing on there is a Chemistry Test. You send a friend a link and it shows the bands you share and the ones only one of you knows, with the play counts behind every name. Works for a group of up to 12 too, which gets loud in a group chat. Your friend doesn't need an account to open it.
Curious what the long-timers here turn up. What's at the top of yours?
listenlab.fm/