It seems a little hasty to proclaim the death of Facebook based on a sample size of two kids. In fact, when I worked in marketing, I used to dread statements from leadership (or whomever) that began with "My kid was doing X, so we should get into X," or "I heard about Y on the radio, so I wonder...," etc. Dangerously flawed assumptions can come from this line of reasoning.<p>Anecdotal samples can be useful to form hypotheses, however, and in this case, I don't think the hypothesis is out of the question. My own anecdotes, be they personal, from friends, or from co-workers, seem to be indicating a very subtle paradigm shift in social networking. It's not so much that users are abandoning Facebook, or abandoning social, but that users are segmenting themselves by use case (or worldview, as the wonderful Amy Hoy would probably describe it).<p>The world <i>seems</i> to be dividing into People Who Use Facebook Every 5 Seconds, and People Who Use Facebook About Once a Week, with perhaps some other segments of significance within that spectrum. But "seems" is the operative word here. I'd need to look at actual usage data to make any real assumptions here, and my guess is that Facebook isn't going to share data that contradicts its own growth projections.