I found those article fascinating:
New classes of devices to diet and exercise
Entrepreneurs try to fill gap in online medical help (Zocdoc, Patientlikeme, iTriage, Treato)
1. Wireless Healthcare by Eric Topol (TED talks)
2. Thomas Goetz: It's time to redesign medical data
3. KAPLAN & PORTER: Solving the healthcare cost
There is a very good article in HBR, where they describe their system.
4. Very interesting Health Economics presentation (Fairness, Cost-Effectiveness and Rationing)