Pyro - Spotify music voting for parties
Google Drive to Slack - Slack notifications whenever you work on Google Drive docs
klaep - music collaboration - klaep is a social music collaboration network for musicians
Kissflow - Kissflow is a workflow tool & business process workflow management software to automate your workflow process. Rated #1 cloud workflow software in Google Apps Marketplace.
MisterJack - Make and share playlists
Heymarket for Slack - Text and Facebook messaging from Slack