Personal information control through the Internet

As Google specialists and innovation gurus, discuss about the on-line personalization of health issues, (just like e-banking, in the future we may control our health issues through the Internet, and exchange views and comments), a question arrises concerning how we can on-line organize our entire lives. In the future apart from our financial and professional issues, we might even be able to control our personal contacts, our family matters, our eating habits. Seems that e-banking opened the way to a new form of order in our lives. The only drawback, of course, would be the privacy of these services, and how it can be guarantied when we are willing to provide a lot of personal information on the web.