The groundbreaking work of Caroline Wang on “photovoice” :

http://www.photovoice.com

Projects of photographer/educatorWendy Ewald :

http://globetrotter.berkeley.edu/Ewald/

Some seminal work on social capital by Robert Putnam :

http://www.prospect.org/print/V4/13/putnam-r.html

Website of the project funder, The Aspen Institute :

http://www.aspeninstitute.org/Programt3.asp?i=83