Links.
Ethnologue
The Linguist List
Web Resources for African Languages
African Languages
The Webbook of African Language Resources
African Language Resources
African Lanugage Association of Southern Africa
Stanford's South of the Sahara Internet Resources on Language
CBOLD (Comparative Bantu Online Dictionary)
Columbia University Library's African Studies Resources
University of London's School of Oriental and African Studies (SOAS)
Bisharat! African language encoding, fonts, keyboards

Journals.
Journal of African Languages and Linguistics
Journal of West African Languages
South African Journal of Linguistics
Studies in African Linguistics
African Languages and Cultures

Conferences.
Annual Conference on African Linguistics (ACAL)
World Conference on African Linguistics (WOCAL)
Focus in African Languages
Talen en culturen van Afrika