网上广告收益对雅虎(Yahoo!)至关重要。一年来,由于美国经济放缓、广告市场萎缩,一度被视为前途远大的雅虎股价跌落近九成。尽管分析家们曾预测雅虎今年的收入可达14.2亿美元,但实际上据该公司1月份发布的消息,雅虎今年上半年的前景依然暗淡,全年收入估计在12-13亿美元之间,略高于去年的11亿美元。面对极为严峻的挑战,为改善网上广告表现, Online advertising revenue is crucial to Yahoo! In the past year, as the U.S. economy slowed down and the advertising market shrank, Yahoo shares, which were once considered promising, dropped nearly 90%. Although analysts had predicted Yahoo’s revenue this year can reach 1.42 billion US dollars, but in fact the company released in January the news, Yahoo’s prospects for the first half of this year remains bleak, annual revenue is estimated at 12-13 billion US dollars, Slightly higher than last year’s 1.1 billion US dollars. Faced with the most serious challenges, in order to improve the performance of online advertising,