COA Foundation is a non-profit organization aimed at building an online language-learning and cultural-exchange platform for Chinese people in the U.S. COA was founded in Philadelphia, a city famous for its historical and educational background. COA has a current body of volunteers from New York, Boston, Philadelphia and other cities on the East Coast, with graduates of the University of Pennsylvania, Columbia University, Temple University and Drexel University serving as core members. The ultimate goal of COA is to gather educators of excellence and online learning resources on the East Coast of the U.S. to provide Chinese English language learners in the US with greater learning opportunities and access.