Ethnologue: Africa map of languages
S.I.L. - the leading Christian linguistic institution; Bible Translation, language learning, and literacy.
African Languages and Linguistics - extensive links from Stanford University.
The Importance of Ethnic Groups in Africa
Mother Tongues: Breaking the Language Barriers
Kamusi Project Links:Swahili Dictionary
List of African Language Sites - University of Wisconsin-Madison
List of Francophone Sites
Africa-Related Software & Information - UPenn's general list of African language tools and resources.
African Languages and Software - UPenn's African country and language specific tools and resources.
African Language Schools:
International Language Schools Index
International and Graduate Programs - US Department of Education