If Facebook owns social, if LinkedIn owns business, who owns your health?

Facebook is massive in scale and scope. Twitter is a public communication forum, but if I'm following you, you're not necessarily following me. LinkedIn is, simply, a professional network.

Social cohesion was built into language long before Facebook and LinkedIn and Twitter - we're tribal by nature. Tribes today aren't the same as tribes thousand of years ago: It isn't just religious tribes or ethnic tribes now: It's sports fans it's communities it's geography.