Comment by sphars
Been scrobbling since 2008. I found out what last.fm was thanks to installing Rockbox on my iPod nano, and seeing they had this "scrobbling" feature. Had to remember to plug in the iPod, pull the scrobble log and upload it using a website someone created.
If you need a scrobbler for Android (and Linux) I recommend Pano Scrobbler: https://github.com/kawaiiDango/pano-scrobbler