Association of Religion Data Archives
Association of Religion Data Archives: Family Tree: Methodist Church
A graphic representation giving the various religious sects and groups that make up the Methodist church in the United States along with a timeline. Provides additional information on certain groups when you do a mouse-over.
Library of Congress
Loc: Religion and the Founding of the American Republic
A wonderful, comprehensive site from the Library of Congress that examines all facets of the religious origins of America.