Privacy concerns over EMR systems

I was researching EMRs for a Congress presentation, as I mentioned before, and the privacy concerns were among the top issues for both doctors and medical administrators.
It is known that Google and Microsoft are making progress with their products, expecting everyone to have online EMRs in short time. It caused me a little trouble to try them, because they are only available in the USA, and I had to browse them with a proxy.
It is known that Microsoft has a very limited online EMR, HealthVault, but they purchased Amalga, a top-level EMR solution and they are trying it in several US hospitals. Amalga comes from “amalgamate”, or unite, because it unites several sources of medical information about a single patient.
Google Health has also a limited version online, but they are working on a full solution. The question is about the future free EMR from Google. Will it have Adsense ads?
How will anyone feel checking his own EMR on Google and finding ads related to his condition? It will be ok if the guy is diabetic and finds ads about insulin syringes. But what if he has terminal cancer and finds ads about coffins and private cemeteries?
Sorry for being blunt. It just came first to my mind.
free EMR by Goog