A column in the Wall Street Journal observes, "Independent websites like Edmunds.com, AutoTrader.com and Kelley Blue Book publish detailed pricing information [on automobiles] for consumers and do so for free. Consumers want such information and businesses see opportunity in providing it, even for free, in order to attract eyeballs for advertising. ... Such information doesn't exist in health care." Why aren't there Web sites that offer pricing data on health care and make a profit from selling advertisements?