Data Ninja just published on Codecanyon a very interesting collaborative platform for dashboard creation and sharing. Some features:

• Multi tenant – users can set up private account with secure login and password
• Collaboration functionality – invite others by email to collaborate on charts and dashboards
• “My Dashboards” panel – displays all dashboards you develop and maintain and those that you are collaborating on
• Brand new enhanced menu that has thumbnail display of collaborators

More informations available here. The product demo is here.
You can start to build your own dashboard.