The ListenBrainz project is similar to the original AudioScrobbler®. Unlike the original project, ListenBrainz is open source and will publish its data as open data.

A team of former Last.fm and current MusicBrainz hackers created the first version of ListenBrainz in the space of a weekend. Since the original project was created, technology has advanced at an incredibly rapid pace, which made re-creating the original project fairly straightforward.

listenbrainz.org