BusinessWeek

Today's most generous philanthropists want to do more than sign a check. For many donors, it's personal: leading the fight against an illness they've suffered from, building state-of-the-art facilities at an alma mater, or funding libraries in their own hometowns.

Our Philanthropy special report ranks the top U.S. givers, detailing who gave what and why. From trends in corporate giving to elite networking groups connecting the world's most affluent families, our editors explore the increasingly complex and rewarding aspects of philanthropy.

Demonstrate your commitment to corporate responsibility by aligning your brand with the givers who make the greatest impact.