Committee for Skeptical Inquiry (CSI) -- formerly known as CSICOP (publishers of Skeptical Inquirer magazine) (UFO Subcommittee member 1980s-'90s, Scientific Consultant 1992-2018) -- Why I resigned in protest
American Council on Science and Health (Scientific Advisor 1997 to present)
Faith-healing Investigation Project, Committee for the Scientific Examination of Religion (CSER) (sponsored by the Council for Secular Humanism and Free Inquiry magazine) (Member 1986-90)
Mensa (Member since 1982; Founder and National Coordinator of a "Skeptics" Service 1987-2011) (Read my Mensa "Skeptically Speaking" essays)
Tampa Bay Skeptics (Founder 1988; Executive Director and Editor of
Tampa Bay Skeptics Report
1988-2013)
Committee for Skeptical
Inquiry
American Council on Science
and Health
Mensa