Just like the typewriter, film camera, and landline phone, the white pages - aka the phone books - have outlived their usefulness. Verizon claims only 1 out of 9 people use the paper version, yet they are mandated to deliver them (and outdated regulation, like most government regulations - a dinosaur).
More and more people are dropping their cable TV subscriptions as well. I suppose in part because of the recession, in part because many popular shows are available online, but also because online is where "the action is".
It is interesting to see how many technologies have become obsolete during my lifetime. Many more to come no doubt.