How are Web 2.0 technologies changing healthcare? What are the implications of trends like cloud-based computing for major healthcare players like pharma companies and large health systems? What about mobile computing? What are the practical implications for providers? What can healthcare providers learn from like dominant Web 2.o players like Google? Silicon Valley legend Tim O'Reilly (The Web 2.0 conference, O'Reilly publishing) gives an overview in this keynote from this years Health 2.0 conference in San Francisco in October.