The German-American Heritage Foundation of the USA offers substantive internships to undergraduates, graduate students and recent graduates at their Museum and HQ in Washington, DC. They are also looking for volunteers.
All the internship and volunteer programs are challenging and hands-on. They combine collective learning opportunities with practical workplace experience. The program is comprised of hands-on practical learning activities including program development, Web site management, communication, planning and maintaining exhibits, organizing fundraising activities, guest services, as well as learning about the general workings of a non-profit.
Learn more about this opportunity at http://www.gahmusa.org/about/internship.html