Black Judaism
Black Judaism is the collective term used to describe sects of Judaism predominantly practiced by the members of the African communities, both within the African Continent and outside Africa (such as North America). It is theologically characterized by the selective acceptance of the Judaic faith (in some cases such selective acceptance has historical circumstances), and that the belief system of Black Judaism is significantly different from the mainstream sects of Judaism. In addition, although Black Judaic communities adopt Judaic practices such as Jewish holidays and Jewish prayers, they are generally not recognized by the mainstream Jewish societies as legitimately Jewish.
Messianic Judaism
Currently there are over 300 Messianic Jewish congregations in the United States with maybe half of their attendance being Gentiles. Most of these congregations belong to the International Association of Messianic Congregations and Synagogues (IAMCS), an arm of the Messianic Jewish Alliance of America (MJAA), or to the Union of Messianic Congregations (UMJC) or to Tikkun International.