The StatCounter monitoring service just release statistics showing that Microsoft’s new search site, Bing might have overtaken Yahoo! as the number two search engine in the U.S. Although it’s too early to tell whether or not this is just a new launch blip or a long-term trend, the indications are that the search engine marketing game (paid search in particular) is changing.

Most companies and advertising agencies such as Domus spread their paid search budgets across the major search engines, generally proportioned according to their relative market shares. Now that Bing might be overtaking Yahoo!, agencies and other marketers need to take a close look at their allocations and resulting traffic to see if they should be adjusted.

Domus, Inc. is a full-service marketing communications agency based in Philadelphia with clients throughout the United States.