But if your company has a less revealing, more magisterial name and the patients who contact you assume that your imprimatur represents an unbiased evaluation, then you're giving me flulike symptoms (morally speaking). Your long lists are dubious and your exclusive listings even worse, a judgment that encompasses both your company and the doctors who pay you.

Rather than speculate about what impression patients "may get," you simply should tell them, clearly and succinctly, how your service works. There's nothing dire in proffering the names of service providers who pay to be listed - the Yellow Pages work that way -- as long as that arrangement is transparent. Google, for example, identifies "sponsored links," making it apparent which listings have been purchased. But while this clarity would be an ethical improvement, your service would remain a poor way for a patient to choose a physician, one that sidesteps any discussion of a physician's merits.

UPDATE: The company folded this spring. "We weren't getting enough interest from potential patients," S.B. says.

(Readers can direct their questions and comments by e-mail to ethicist@nytimes.com. This column originates in The New York Times Magazine.)

COPYRIGHT 2008 UNIVERSAL PRESS SYNDICATE