The advent of Yahoo Local seems like it will eventually make Yahoo Yellow Pages redundant. Already, if you go to Yahoo and click on Local at the top, it takes you to a page with a Yahoo Local header. The Yahoo Yellow pages does the same, although the search boxes are different. Doesn't this indicate that the Yahoo YP is being overwhelmed by Yahoo Local?
Currently, sponsor positions on Yahoo Local are pulling on Overture ads, while Yahoo YP is a separate track, but since both systems allow you to search by category, is there any real difference?