The Orthodox Presbyterian Church:Official Site. A conservative Presbyterian denomination with over two hundred churches in the United States. Site includes information on church beliefs, ministries, and local congregations.
Great Commissions Publications: Publishing ministry of the Orthodox Presbyterian Church and Presbyterian Church of America. Publishes Sunday School curriculum, Bible study material, and other literature.
Orthodox Presbyterian Church: Ecumenical Relations: A study, by Reverend Richard E. Pot, of the OPC's ecumenical relations with Reformed churches, focusing especially on the Canadian Reformed Churches.
Presbytery of Michigan and Ontario: Resource center for the Michigan and Ontario Presbytery.
Presbytery of the Mid West: Directory of churches and resource center for the Presbytery of the Midwest
Presbytery of the Mid-Atlantic: Directory of churches and resource center for the Presbytery of the Mid-Atlantic
Presbytery of the Southwest: Presbytery news, events, and leadership.