Видео с ютуба David Callahan

David Callahan | The Givers: Wealth, Power, and Philanthropy in a New Gilded Age

Bang for the Buck: David Callahan on investing in democratic power building for sustainable change.

Understanding Our New World | David Callahan

BBC Interview with David Callahan on Bill Gates's Philanthropy

The Givers: Wealth, Power, and Philanthropy in… by David Callahan · Audiobook preview

David Callahan on the Cheating Culture - CNN: March 13, 2019

CMoP Forum: New Billionaires "Game Changing" for Philanthropy

David Callahan: Wealth, Power, and Philanthropy

Rich Liberals Vs Conservatives w/ Author David Callahan

Digging Deep into Philanthropy—the Good, the Bad and the Ugly

David Callahan: Cheating to Get Ahead (4/23/12)

David Callahan, Demos: Philanthropy and Inequality

Liberal and Rich | David Callahan & James Ledbetter

Inside Philanthropy’s David Callahan Gets All Carrot-y Stick-y With It

David Callahan american reporter

Inside Philanthropy’s David Callahan Gets All Carrot-y Stick-y With It

Monkey On My Back: A Conversation with David Callahan

The Givers Elevator Speech

The Texas Stomp taught by David Callahan

David Callahan - Gravity (Moonshake song) - Lexington 28/6/15