Ken Wilber – www.kenwilber.com

Paul Smith – www.revpaulsmith.com

Pierre Teilhard de Chardin – www.teilharddechardin.org

Andrew Cohen – www.andrewcohen.com

Steve McIntosh – www.stevemcintosh.com

Marcus Borg – www.marcusborg.org

Bart Ehrman – www.bartdehrman.com

Rez Aslan – www.rezaaslan.com

Robert Wright – www.robertwright.com

John Dominic Crossan – www.johndominiccrossan.com

Rob Bell – www.robbell.com