http://handbook.neighborland.com/about/ - Neighborland - kind of a facebook for neighborhoods and development projects and issues. Maybe this will be a great way to normalize best practices for development, sustainability and energy efficiency projects.
I'd love to see something like this drive demand for energy efficiency projects on existing buildings.
Another interesting tool is coming out as a fb ap: https://social.opower.com This is a way to compare you own levels of energy efficiency with your friends.
Check these out and draw you own conclusions.