I support the following organizations:

• American Association of Teachers of German (AATG) - Life Member
• American Association of University Professors (AAUP)
• American Civil Liberties Union (ACLU)
• American Federation of Teachers (AFT)
• Amnesty International
• DAAD (German Academic Exchange Service) Alumni Association
• Friends of the Freie Universität Berlin
• Habitat for Humanity of Metro Denver
• Pennsylvania State University Alumni Association - Life Member
• University of Pennsylvania Alumni Association
• Sierra Club