So is Facebook seriously the next Myspace? Read Princeton's research report ("Epidemiological modeling of online social network dynamic"). They compared their Google search trends since 2004.
But Facebook does own Instagram as a possible hedge. Here is Instagram's search trend.
That would be a crazy black swan event if Facebook went to zero. Here is Facebook's stock chart (FB). The company is currently worth $212 billion on the market.
Follow me on Ello.