Baptist
Southern Baptist Convention http://www.sbc.net/
Mississippi Baptist Convention http://www.mbcb.org/
Missions
International Mission Board http://www.imb.org/
North American Mission Board http://www.namb.net/
New Tribes Mission http://www.ntm.org/
Bookstores
Christian Book Distributors http://www.christianbook.com/
Sword of the Lord http://www.swordofthelord.com/