U.S.News.com has a story on Katrina volunteers.
The article features Habitat volunteers. One woman, an Americorps volunteer, was sent to N.O. for a month and decided to stay for a year:
Maybe the realization came when she was rebuilding houses with Habitat for Humanity and a group of musician homeowners pulled out their instruments and began to play. "I started bawling," Steinman says. "I was just overwhelmed."
Thanks to Bryan McAnally of Spare Change for the tip on this story.