Yahoo Japan announced today that Overture Japan will operate under Yahoo Japan brand starting October 1, 2009. Overture is currently a subsidiary of Yahoo Japan, providing the PPC services for PC and mobile for Japanese search market.

This may be a way to strengthen Yahoo’s online advertising services, which currently provides display ads, text ads, e-mail ads and affiliate programs. By bringing in Overture’s PPC services into Yahoo advertising service plan, they will be able to provide the total online advertising services to its customers. And, in near future, we may be able to get a data and report showing if and how each advertising effort has positive impact on other advertising or marketing efforts.

Perhaps, this is a clever move before the integration of bing search engine into Yahoo site as many advertisers are wondering if the relation between Microsoft and Yahoo will include the advertising services in future or not.

According to Overture’s 2008 Q4 financial report (ended March 2009), Overture had more than 92.8 Billion yen in sales, which was more than 1/3 of Yahoo Japan’s overall sales in the same quarter.