OIL ABOARD: U.S. and Canadian drillers are producing oil faster than new pipelines can be built. As a result, trains have become an unexpected yet vital way to move this bounty of energy. This year, more trains carrying crude will chug across North America than ever before - nearly 1,400 carloads a day. In 2009, there were just 31 carloads a day.
SAN FRANCISCO (AP) - Google views the computing shift to smartphones and tablets as a golden opportunity, but the Internet search leader's second-quarter performance served as an unsettling reminder that it poses a nagging financial challenge, too.