For teams that have things to talk about and things to do, Rule (www.rule.fm ) is the cloud application that connects discussions to activity. Unlike other productivity solutions, Rule gives even the smallest work item a proper place and it's own space for sharing, connecting and collaborating.
Collaboration Streams, Projects, CRM, Documents, Task Management, Wikis, Contact Management, Sharing & Permissions, Internal Messaging, Calendar and more. More Info »
See Rule in Action: http://www.youtube.com/watch?v=AE2xou_t_X4