Rather than waste your time by putting here links to places that are obsolete or unpopular, I’ll only include those that seem to be current and ever-changing. This is a toughie, especially considering the amount of time I have to spend looking for said sites. As a starter, I put down anyone’s web page that we make a reference to, plus the pages of the Big Three Organizations. After that, I don’t know who’s "worth adding"; if you think you are, send the URL to apg@duke.edu (and yes, you should be tired of that by now) and If I consider it worthy, it will be added.

ACF

CBCI

NAQT

Case Western Reserve

Duke University

Georgetown

Maryland

Oklahoma

Stanford

Virginia Tech