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Parallel Listen to music with friends over Spotify at the same time
Mixably Playlist community powered by Spotify
Notebook The beautifully simple note-taking app
Killswitch Erase your ex from Facebook
AutoMute Silence your Mac automatically in class or at the office
MovieAlerter Get alerted when great movies go to DVD
Documentary Addict Largest and best curated collection of documentaries
The Internet Arcade 900+ classic arcade games, no quarters required.