Papermind - Papermind Slack App is a collaborative article-editing and document management platform for Slack
Coin Demo - Visual demonstration of how bitcoin transactions work
Quip: Team Documents for Slack - Create, share and get notified about Quip docs in Slack
BlockchainI.CO - Research, ratings and analysis on upcoming ICO’s
Workflowy - A better way to organize your mind.
Blockchain Startups Map - Map & searchable database of 430 companies in 64 categories.