Chabad

an outreach-oriented branch of Hasidic Judaism that follows the Lubavitcher Rebbe. Chabad has thousands of branches around the world, including at many college campuses.

maccabiah

color war / intra-camp competition in a Jewish summer camp

international Jewish sports competition, known as the Jewish Olympics, held (mostly) every four years since 1932; smaller regional competitions held in Jewish community centers around the world