The Ewing Marion Kauffman Foundation (Kauffman Foundation) is a non-profit foundation based in Kansas City, MO, with the mission of working to grow economies, expand human welfare, and foster a society of economically independent individuals who are engaged citizens, contributing to the improvement of their communities.
http://www.kauffman.org 
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AARP is a nonprofit, nonpartisan membership organization for people 50 and over dedicated to enhancing quality of life for older people, providing a wide range of unique benefits, special products, and services for its members.
http://www.aarp.com
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The National Association for Community College Entrepreneurship (NACCE) is a non-profit organization founded in 2002 to serve the mission of accelerating entrepreneurship at community and technical colleges in the United States.  NACCE’s vision is creating economic vitality through entrepreneurship, as community colleges are in an ideal position to accomplish this based on their accessibility and local ties to their communities.
http://www.nacce.com