Pretty useful search tool. It is nice that it gives bios for all the doctors.

No bells and whistles on this page -- just a search function. If you're looking for an allergy specialist, however, this is probably the single most useful resource on the web. I recommend using a search radius of at least 50 miles, though, as it returned no results when I searched within a 10-mile radius of my zip code. When I expanded the search radius, however, it displayed a number of allergists, some of which are clearly within 10 miles of my zip code.