U.S. ads. groups opposed the cooperation between Google and Yahoo

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September 8, according to foreign media reports, the U.S. national advertising groupsThe Association of National Advertisers said on Sunday that they have submitted the letters about their opposition to the cooperation of Google and Yahoo in search advertising to the U.S. government regulatory departments.

The Chief Counsel Thomas - Barnett (Thomas Barnett) in the letter that: "Google and Yahoo's cooperation will control 90 percent of search advertising, may reduce competition, increase the concentration of market forces, reduce the existing option, May be increased to advertisers do high-quality advertising prices. "

Yahoo said Sunday: "remains firmly believe that this agreement will strengthen the competitive position of Yahoo, the agreement on the price advertisers demand from the auction decided not to depend on Google and Yahoo's collusion. Yahoo will help advertisers get more powerful, The higher quality market. "

Some advertisers to support the agreement that it can improve the efficiency of online advertising market. Google and Yahoo had said in June to reach an agreement before the implementation of the agreement can not passed regulatory approval, but a voluntary agreement to postpone the implementation of up to three and a half months. This non-exclusive agreement covers the United States and Canada Web search market, but does not include other markets, the two sides said that the two companies will in other areas of fierce competition.

Currently, several states Minister of Justice is reviewing the agreement, including the Florida Attorney General Bill - Bill McCollum, his spokesmanSandi Copes said: "It is hard to say when the review is completed. "