To celebrate its 160th anniversary, the YMCA of Greater New York is offering free T-shirts to people willing to share their stories of how the Y has made a difference in their lives. Within 48 hours of issuing the appeal by e-mail and social media, the organization received nearly 300 stories recounting childhood swimming lessons, triathlon training, exercise programs started after injuries, and long-ago summer camps.

philanthropy.com/blogs/social-philanthropy/y-of-n-y-uses-social-media-to-collect-stories-and-donors/