"Of all 10 African countries surveyed, only in South Africa is more than half the population online. The Internet penetration rate in Ghana, Kenya, Lesotho, Nigeria and Senegal is above the 20% threshold – but even this requires further investigation in a developing country context, where the unaffordability of data means that usage is generally very low and most people are using services passively, not in the high-speed, always-on environment where studies of causality in relation to penetration and economic growth have been done. In some countries, the low Internet uptake is a result of no coverage – there is insufficient broadband extension beyond the major urban centres in the case of Mozambique, Nigeria and Uganda. Yet even in countries where there is extensive coverage, such as in Lesotho, Rwanda and South Africa, the cost of devices is a major barrier to uptake. Such demand-side constraints relate not only to affordability of devices and services, but also to classical issues of human development. In several countries, including Nigeria and Tanzania, the lack of awareness or skills on how to use the Internet accounts for the large numbers of people who remain offline." (Executive summary)