Over the past decade or so, increasing numbers of groups have been working on answers to variations of the following question:
How can the wealth of educational resources on the Internet be brought to the majority of African schools that are today 'un-connected'?
While the Internet has not wrought the similar types of profound, broad societal changes in Africa that it has in other parts of the world, the connectivity landscape in Africa is in fact changing very quickly in many places (for the better!), with (for example) macro-level announcements about progress with new fibre optic cables coming on what seems like a weekly basis.
(For those who like such things, here's a great map to track technical progress in this area. For acronym fans, here are links to announcements about some of the major backbone connectivity initiatives in Africa: Glo, RCIP, EASSy, TEAMS, Seacom and LION2.)
Earlier this year the total number of mobile phone subscribers in Africa (over 300 million) passed the total in North America and, while access to the Internet via mobile phones is still low across the continent, it is growing quickly. In Nigeria, for example, published reports now have mobile phones as the primary access device to the Internet in Africa's most populous country. There is even increasing talk (and some action) of connecting African educational institutions to the 'cloud' in various ways.
That said, it also undeniable that improvements in connectivity are not coming fast enough, or at a high enough speed or quality, or cheaply enough, for all citizens and schools, especially outside major population centers -- and won't any time in the near future.