The world wide web does not look at Africa this way much. Especially overviews of this kind are difficult to spot. A link on the traditional peoples can not be delivered yet. It is recommended to search in the countries indexes. You can use those peoples names or language names for search engine queries then later.
Many African newspapers are online now.
Not too long ago the world wide web did not exist for Africa with the exception of South Africa. Then Zambia as the first state entered the Internet with 'Zamnet'. It will be interesting to watch the development. Of course governments only deliver filtered information. Don't forget to check by searching for alternative sources.