For a long time now patients have been meeting in online (and offline) communities, sharing experience, advice and more recently data and measurements. And the health care system–which knows that communities improve health–has done virtually nothing–other than some doctors having doctors answer questions on MedHelp. That is just starting to change. Last year Geisinger did a small trial with dLife that showed improvement in diabetics outcomes. More recently Aetna inked partnerships with MindBloom and OneRecovery, two communities focused on spirituality and addiction, and today Diabetic Connect (part of Alliance Health) announced a deeper integration with the Joslin Diabetes Center. It’s been a while, but the heart of Health 2.0 (communities) are starting to move towards the mainstream.