Twitter...invented an entirely new communications protocol
Um...
Zynga...bigger economy than many developing nations
Possibly true. I admire the business acumen of both firms and think they have scaled their services quite effectively. But how productive are they? I mean, I remember seeing stockbrokers and lawyers standing in line at 8am to buy limited edition Beanie Babies because they were considered a smart investment.
You make several good points but I agree with the other posters questioning the degree of value creation taking place.