TrackStack - Easy Spotify playlist sharing and collaboration
RightGIF - Less noise, better GIFs. A better /giphy for Slack.
Playlist Machinery - Tools that help you create & organize your Spotify playlists
Firesong - Giphy for Music in Slack w/ Emoji Search
Slackbox - Spotify playlist collaboration through Slack
Slack Meme Bot - Spice up your team conversations with memes