The concept isn't much different, but the permission model is. document.ly is very similar to Asana and Trello (allowing every user to participate in multiple p

The concept isn't much different, but the permission model is. document.ly is very similar to Asana and Trello (allowing every user to participate in multiple projects and inviting anyone in the world to view and edit any document), while Hackpad aims for a standard B2B marketing strategy.