Feb 9 (Reuters) - News Corp NWSA.O , the owner of the Dow Jones Newswires and book publisher HarperCollins, posted a second-quarter loss as it struggles to offset the decline in advertising income in its newspaper business.
Net loss available to News Corp shareholders was $290 million, or 50 cents per share, in the quarter ended Dec. 31, compared with a profit of $62 million, or 11 cents per share, a year earlier.
The company, controlled by media mogul Rupert Murdoch, said revenue fell 2.1 percent to $2.12 billion.