Get our introductory offer at only
*$0.99/month for first 3 months
$29.90/month for the next 9 months
US technology companies are dominating rankings of the world's largest companies as never before.
Lifted by a 10 per cent jump since the start of the year, Facebook Inc just leapfrogged Exxon Mobil Corp and Berkshire Hathaway Inc to become the fourth-most valuable company...