Xmind - Xmind is a brainstorming and mind mapping application.
Playlist Machinery - Tools that help you create & organize your Spotify playlists
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
Heartbeat - Listen to music with your friends together, on Spotify
FeatureMap - FeatureMap story mapping, simple and effective realtime collaboration and collective intelligence tool.
Magic Playlist - Get the playlist of your dreams based on a song