Double-digit growth in Yahoo's display ad revenue helped offset some declines in search revenues as it posted a 113 percent rise in operating income for the third quarter 2010 to $396 million. However revenue increased just 2 percent compared to the same period last year, to $1.6 billion.During a conference call with analysts, CEO Carol Bartz noted the transition of its search operations to Microsoft and Bing remains on schedule, adding that algorithm-based search in the U.S. and Canada transitioned last month with paid search set to follow. But she conceded that over the short term search revenues have been negatively impacted as some advertisers waited to move to Microsoft adCenter.Yahoo's real strength during the quarter was on the display ad side. The company reported a 17 percent Q3 revenue rise on its owned and operated sites to $465 million - though that was off slightly from the $468 million in display revenue from the second quarter of this year. While the company did report a 4 percent decline in page views - troubling for any portal - Bartz touted the company's continuing progress to better target and deliver the right audience to its advertisers.