Special Report: The Philanthropy 50

America's Wealthy Made More Big Gifts

By Maria Di Mento and Caroline Preston

The 50 biggest donors, including William S. Dietrich II (No. 2), contributed $10.4-billion last year, up from $3.3-billion in 2010.

Who is No. 1? Margaret A. Cargill, who gave approximately $6-billion.

How Donors Gave: Key facts and figures

Gap Between Rich and Poor Influences How Donors Give

The Biggest Donors of 2011

Google co-founder Sergey M. Brin and biotechnologist Anne E. Wojcicki donated $61.9-million in 2011, putting them at No. 25.

Browse the full list to see how the couple compares to other big donors.

You can also browse previous years' lists:

2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000

The Top 5

Live Discussion

Beyond the Rankings

Appealing to Big Donors