Sigh, generally I don't click through to Forbes articles, I should know better. This one did not disappoint, I stopped reading right here:

"Look at Facebook. The company didn’t invent anything. Instead, it just picked a better demographic—18 to 35-than LinkedIn or MySpace."

Now look at a comparison of the market performance of FB and LNKD [1].

[1] http://www.google.com/finance?chdnp=1&chdd=1&chds=1&...