* These sites feature publications that deal with but are not limited to the topic of service-learning research. 1.   National Service-Learning Clearinghouse The National Service-Learning Clearinghouse is a project of ETR Associates and is funded by the Corporation for National and Community Service. It supports the service-learning community in higher education, K-12, community-based initiatives and tribal programs, as well as all others interested in strengthening schools and communities using service-learning techniques and methodologies with materials, references, referrals, and information. TOP 2.   American Association of Community Colleges AACC is the national voice for the nation's 1151 accredited two-year colleges and their 10 million students. Close to 95 percent of all accredited, two-year colleges are AACC members. TOP 3.   American Psychological Association Based in Washington, DC, the American Psychological Association (APA) is a scientific and professional organization that represents psychology in the United States. TOP 4.   University of Wisconsin Morgridge Center for Public Service Based in the University of Wisconsin at Madison, the Morgridge Center for Public Service promotes citizenship and learning through service within local, national and global communities. The Center builds on the Wisconsin Idea, a strong tradition of service to the community by students, faculty and alumni. TOP