WINNIPEG - A stronger advertising market and lower operating costs contributed to a 3% increase in revenue for the third quarter at CanWest Global Communications, the company announced Thursday.For the quarter ended May 31, 2010, consolidated revenue of $557 million and operating profit of $150 million were up 3% and 101%, respectively, when compared to the same period in the previous year. Excluding results from the now defunct E! network, which was included in CanWest’s 2009 results, consolidated revenue and operating profit for the third quarter of fiscal 2010 increased by 7% and 29% respectively.Net earnings of $16 million for...