PhotoTime - Automatic face sorting & keywords tagging for your photos
Spotify - Map shows when two people play same song at same time
Piwigo.org - Manage your photo collection with Piwigo. Piwigo is open source photo gallery software for the web. Designed for organisations, teams and individuals.
SOUNDS - Discover music with friends
Facial Recognition by FB - Get notified if someone tries to use your photo on Facebook
Songlink - Share music with anyone.