http://www.africanmusichub.com/ http://www-sul.stanford.edu/africa/music.html
http://www.mnsu.edu/emuseum/cultural/music/african_music.shtml
http://www.africanmusic.org is a good online resource for popular music from Africa. For example, one can access biographies of Yvonne Chaka Chaka and Johnny Clegg, albeit in summarized form.
http://www.music.org.za is a good online resource for artists such as Abdullah Ibrahim
http://www.africanmusic.com has many links to African music websites.
http://ILAM.ru.ac.za should be compulsory reading material for students. The links are also very valuable.
http://www.dancedrummer.com is a good website for Ghanaian drumming. It describes in great detail the kinds of music used for funeral rites in one of the societies of Ghana.
http://www.African-drumbeat.co.uk is a good resource to access various rhythm patterns. Audio examples are also given.
http://www.dagaramusic.com has video clips. It is password protected.
http://www.ukzn.ac.za/music/amp.html shows the link between ethnomusicology and music education.
http://www.African polyrhythms gives examples of African polyrhythms.