David Meerman Scott

Global Marketing Guru & Sales Expert

David Merritt

Former Chairman of the Center for Health Transformation and Expert on Healthcare Policy

David Satcher, M.D., Ph.D.

16th US Surgeon General; Founding Director of the Satcher Health Leadership

David Wolman

Author of "The End of Money" and Wired Contributing Editor

Dawn Riley

Founder, Captain & CEO of America True

Debbie Dadey

Author of Over 145 Children's Books, Including "The Adventures of the Bailey School Kids" Series

Debbie Lessin

Facilitates Interactive Workshops on Life Balance

Deborah Grayson Riegel

Management Coach, Consultant & Trainer

Dennis Snow

Customer Service Expert, Formerly with the Disney Institute, Business Author

Derald Wing Sue

Professor & Author

Derek Daly

International Racing Champion, Bestselling Author, CEO & Founder of MotorVation

Devin Alexander

New York Times Bestselling Author, Celebrity Chef Known For "Biggest Loser"

Devon Harris

Member of First Jamaican Bobsled Team; Featured in Hit Disney Movie, "Cool Runnings"

Dia Frampton

Runner-Up on Season 1 of "The Voice"

Doc Hendley

Global Humanitarian, Clean Water Crusader, Top 10 CNN Hero, Sustainability Advocate

Dominique Witten

Stand-Up Comedian & Finalist on NBC's "Last Comic Standing"

Don Peppers

Marketing & Sales Futurist, Customer Experience Thought Leader, Best-Selling Author

Don Yaeger

Award-Winning Leadership Coach & Best-Selling Author

Donna Shirley

Management Consultant & Author; Former Manager of the Mars Exploration Program

Donnell Rawlings

Comedian & Actor; Best Known for his Role in "The Chapelle Show" and HBO's "The Wire"

Doug Lansky

Award-Winning Travel Writer, World-Travel Expert & Travel Trends Futurist

Dr. Chris Ashworth

Dairy Technical Consultant

Dr. Christopher Bauer

Expert in customer trust, professional ethics, and values

Dr. Dorothy Espelage

International Expert in Bullying; William C. Friday Distinguished Professor of Education at UNC-Chapel Hill

Preventing Bullying and Violence in Schools and Beyond

Dr. Elaina George

Otolaryngologist, Expert on the Business of Healthcare, Medicine & Small Business Ownership

Dr. Elizabeth Norman

Professor of Humanities at NYU’s Steinhardt School of Culture, Education, and Human Development; Author, "WOMEN AT WAR: The Story of Fifty Military Nurses Who Served in Vietnam 1965-1973"

Dr. Francis Collins

Head, Molecular Genetics Section, National Human Genome Research Institute; 16th Director, National Institutes of Health

Dr. Francis Collins: "I don't see a conflict" between science and faith ...

Dr. Ian Smith

Doctor, New York Times Bestselling Author, Medical Contributor & Host of "The Doctors"

Dr. Jawanza Kunjufu

Author, Speaker & Founder of African American Images

Dr. Judith Wright

Inspirational Speaker, Trainer, Life Coach & Best-Selling Author of "The Soft Addiction Solution"