Obie.ai - Access knowledge quicker without leaving Slack
Dropbox - Online Sync and File Sharing
Knowledge Plaza - Knowledge Plaza is a SaaS Platform dedicated to Social Knowledge Management.
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Google Drive - Access and sync your files anywhere