Yahoo Overture Keyword Selector tool shows the statistical data upto Jan 2007. Yahoo is planning on a move from its old search marketing product the Overture to the new one. “Panama”. As a result Yahoo Overture data have been stopped from being analysed.
Overture was initially developed to assist Overture advertising partners find the list of competitive and sort after keywords to bid aution on the PPC. However, its popularity increased exceedingly and became one of the most popular keyword selection tool. This was further taken by 3rd party tools to reterive search volumes.