I've been skeptical of the advertising model in all this social media for awhile. I think this indicates that, after the dust all settles in a few years, we'll have limited-functionality free levels of FB, Twitter, etc., and modest subscriptions for full functionality.
And I continue to say that, as adults experience more of this, the backlash for protecting privacy will also limit the usefulness of these to advertisers.I just don't think that the large majority of adults want to go back to small-town-everybody-knows-your-business situation.