While they're fast becoming obsolete, there are competing Yellow Pages in many markets, and the companies printing them want potential advertisers to think theirs is the best one to buy ads in.

I'm beginning to consider that the driver behind Yellow Pages now is less about advertising and more about the weakening pulse of the printing business.

I think it was a Seattle apartment complex that wanted to stop delivery of the Yellow Pages because they'd all wind up in the trash. The YP company sued, claiming that allowing any place to refuse delivery impinged on their first amendment rights or some other hooey.