Other than one word and a comma, it's not clear to me what the difference is between the American COLLEGE of Allergy, Asthma and Immunology, and the American ACADEMY of Allergy Asthma and Immunology. Both of their physician referral tools appear to be useful, though, so I'll give them both 5 stars.

An extremely helpful page! I put in my zip code and told it to find an allergist in a 50 mile radius and it pulled up all of the allergists in our area. My son's allergist was on there and so was an allergist that I recently met at a food allergy support meeting, so I'm assuming it's a pretty comprehensive list. It lists the allergists specialties, where they trained and what kind of certification they have.