Inside a $5-Million Effort to Aid the Nonprofit World's Next Generation

Christopher Mateo had a life-transforming experience last summer.

Working as an intern at the Latino Commission on AIDS, in New York, he watched as people heaped praise on the organization's president, Dennis deLeon, during an award banquet in Mr. deLeon's honor. The award was nice, Mr. Mateo thought, but even more impressive was Mr. deLeon's passion and commitment. Suddenly, the young man had a vision of his own future.

"Just seeing him up there accepting his award, it was an