Playlistful - Collaborative playlists for parties!
Lurchr - Saves all your Slack links, so you can focus on work
Pyro - Spotify music voting for parties
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Party On Demand - Have a party delivered to your door in 60 mins or less.
Slack It - A bookmarklet to share links in Slack with one click