Amium!

Amium turns any file into a real-time activity feed and conversation.- file conversation: you can share files with your coworkers, and start conversation threads about those files.- file sync and sharing: files are synced and shared, so you can work on them together and in real-time.- projects: create projects and invite collaborators- chatrooms: create chatrooms to message people- messaging: invite and message people privately- version history: see all previous versions of a file. - Office Online integration: create and edit Word, PowerPoint, and Excel documents directly from Amium. Made with love in Palo Alto, CA.