Guardian: A few days ago, if you are the twittering type, you probably would have noticed the #sharknado hashtag dominate your feed.
Helped by the hype of scores of celebrities, including Mia Farrow and the late Glee star Cory Monteith, #sharknado made a massive online splash, but its ratings ultimately were a "bust", according to Bloomberg's Business Week.
Sharknado, a movie apparently about sharks and tornados, was a direct to TV movie for the SyFy cable network, whose role is to fill the "ridiculously...