January 30, 2009 ~ Magician Tom Cramer ~ O4SR 2009 Annual Meeting and Magician Tom Cramer

January 23, 2004 ~ Comedian Trish Randall ~ O4R 2004 Annual Meeting

November 21, 2003 ~ Thomas Kite, Ph.D. ~ Debunking Audio Myths

February 23, 2001 ~ Terri Lomax, Ph.D. ~ A Tomato Is a Tomato – Or Is It? What’s up with Genetically Engineered Food

December 7, 2000 ~ Melissa Finucane, Ph.D. ~ Mad Cows, Mad Corn, Mad Communities

March 5, 1999 ~ Richard Hill, Science writer for The Oregonian ~ Science and the Media

November 13, 1998 ~ Ted Clay ~ Crop Circles: Graffiti of the Gods

April 24, 1998 ~ Donna Kossy, author ~ Kooks and the Kook Tradition

May 16, 1997 ~ Dr. Barry Beyerstein ~ Neurology of the Weird