Michael R. Bloomberg ranked No. 5 on The Chronicle’s Philanthropy 50 list of the most-generous donors of 2011.
David M. Rubenstein ranked No. 20 on The Chronicle’s Philanthropy 50 list of the most-generous donors of 2011.
William I. Koch ranked No. 23 on The Chronicle’s Philanthropy 50 list of the most-generous donors of 2011.
Eric F. Ross ranked No. 16 on The Chronicle’s Philanthropy 50 list of the most-generous donors of 2011.
George Soros ranked No. 4 on The Chronicle’s Philanthropy 50 list of the most-generous donors of 2011.
Nina Ireland ranked No. 30 on The Chronicle’s Philanthropy 50 list of the most-generous donors of 2011.
Margaret A. Cargill ranked No. 1 on The Chronicle’s Philanthropy 50 list of the most-generous donors of 2011.
No. 33 (tied): Gustave M. and Rita E. Hauser
Gustave M. and Rita E. Hauser ranked No. 33 on The Chronicle’s Philanthropy 50 list of the most-generous donors of 2011.
No. 44 (tied): Robert L. Tidwell
Robert L. Tidwell ranked No. 43 on The Chronicle’s Philanthropy 50 list of the most-generous donors of 2011.
Paul G Allen ranked No. 3 on The Chronicle’s Philanthropy 50 list of the most-generous donors of 2011.
Couple’s Ties to Stony Brook Prompt $150-Million Gift to the University
Jim Simons, now a hedge-fund manager, and his wife, Marilyn, provided money to pay for a medical-research building and expand the life-sciences faculty.
By Caroline Bermudez
Contributor
Americans Are Most Generous, Global Poll Finds
The United States jumped to the No. 1 spot, from fifth place, in a study of giving and volunteering in 153 countries.
Former Professor Gives Record $150-Million Gift to a New York University
The gift, from the foundation of a former professor turned financier and his wife, is also one of the largest ever to any public university.
By Collin Eaton
Contributor
Young Internet Tycoons Hurry to Embrace Big-Scale Philanthropy
A growing number of young technology entrepreneurs are giving big sums and getting involved in hands-on efforts to change society.
By CODY SWITZER
Contributor
A Twitter Co-Founder Starts Small With Family Charity
Biz Stone and his wife, Livia, say they’ll increase their giving after they learn what works and what does not.
By CODY SWITZER
Contributor
Technology Entrepreneurs and Charitable Giving
Many of the nation’s wealthiest Americans earned their money by starting or running technology companies. Here’s a sampling of what they have publicly committed to charity since 1999: Company Estimated Net Worth in 2011 Donations and Pledges Bill Gates Microsoft $59-billion $28-billion Jeff Bezos…