Playlist Machinery - Tools that help you create & organize your Spotify playlists
ShareTube - Watch YouTube, synced with friends.
Heartbeat - Listen to music with your friends together, on Spotify
&chill - Watch YouTube & Twitch videos with people online
Partyhero - Pass your friends the aux!
Picaboo - Picaboo is a web-based image publishing and printing service that allows you to create personalized photo books, cards, and scrapbooks.