ListenBrainz is a free and open-source project (similar to Last.fm) that tracks your music listening habits and provides insights into your taste. By submitting your listening data, you contribute ...
MusicBrainz is a community-maintained open source encyclopedia of music information. This means that anyone — including you — can help contribute to the project by adding information about your...
BookBrainz is an ambitious open-source project dedicated to creating a comprehensive online database of every published book, magazine, journal, and other publication ever written. As part of the M...
MetaBrainz Foundation Inc
