The Foundation of Research and Education arm of the American Health Information Management Association (AHIMA) released a report titled "State Level Health Information Exchange: Roles in Ensuring Governance and Advancing Interoperability." The report was funded by ONCHIT.
I've just scanned the report but it appears to give a nice overview of the current status of state level initiatives to create an interoperable health information system.
Tip from iHealthBeat.
