Dictionary of African Christian Biography (DACB) [ http://www.dacb.org/ ]
A non-proprietary electronic database covering all the denominations and church branches of African Christianity, including the missionary movement, from earliest times to the present, over all of Africa.

International Biographical Centre [ http://www.internationalbiographicalcentre.com/ ]
A world leader in biographical publishing. Founded over forty years ago, its range of reference titles have earned an international reputation for unrivalled scope and integrity.