Great post from Cory Doctorow on the sustainability of social media. Overall post is great, but this quote is priceless:
Only ancient, clueless dinosaurs like Rupert Murdoch are dumb enough to pay hundreds of millions for social media companies with the belief that they will grow to be immortal giants. Only lazy, fat media execs from firms that endured for decades without having to remake themselves from top to bottom think that a complete turnover in the corporate landscape is a failure.
(would have just tweeted this but it deserved to be displayed in its entirety)