Affiliate Faculty, Colorado State University, Department of Philosophy, July 2001 – present

Moderator, Equine Discussion Group, American Veterinary Medical Association’s Network of Animal Health (NOAH), 1998 – present

Assistant Editor, Equine Veterinary Education, London, England

Reviewer, Equine Veterinary Journal, London, England

Reviewer, Australian Veterinary Journal, Sydney, Australia

Member, Web Editorial Group of the VetMedInfo Project to Improve library Services for Practicing Veterinarians, National Library of Medicine, 2008

Featured veterinarian, MyHorseMatters.com, American Association of Equine Practitioners, January 2006, “Nutritional Supplements.”

Featured veterinarian, MyHorseMatters.com, American Association of Equine Practitioners, August 2003, “Navicular Syndrome.”

Editorial Board, Scientific Review of Alternative Medicine, 1998 – 2006

Consultant Board, World Equine Veterinary Review, Lexington, KY, 1998 – 2001.

Board of Advisors, American Council on Science and Health

Equine Advisor, National Council Against Health Fraud – Task Force on Veterinary Medicine

Co-chairman, Quackwatch Committee on Veterinary Medicine

Member, National Registry of Who’s Who, 1997

Member, Committee to Rewrite Guidelines on Alternative and Complementary Veterinary Medicine, American Veterinary Medical Association, 1999 – 2001

Member, Equine Welfare Committee, American Association of Equine Practitioners, 2011 -

Member, Abstract Review Committee, American Association of Equine Practitioners, 1999-2000

Member, Committee on Prepurchase Examinations, American Association of Equine Practitioners, 1998 – 1999.

Member, First Committee on Therapeutic Options, American Association of Equine Practitioners, 1998 – 2000.

Member, International Committee, American Association of Equine Practitioners, 1993 – 1996.

Expert Consultant, Association of Scientific Advisors, Encino, CA

Scientific Advisor, “The Noble Horse,” National Geographic Video, 1999.