Playlist Machinery - Tools that help you create & organize your Spotify playlists

Workona - A better way to work in the browser.

Heartbeat - Listen to music with your friends together, on Spotify

OneTab - Whenever you find yourself with too many tabs, click the OneTab icon to convert all of your tabs into a list. When you need to access the tabs again, you can either restore them individually or all at once.

Magic Playlist - Get the playlist of your dreams based on a song

Session Buddy - Manage Your Browser Sessions