They say a picture paints a thousand words, and that may be the case. But if they cost the earth or you don’t have permission to use them, they end up painting nothing much at all.

When my mobile ‘career’ kicked off in 2003 with multiple research trips to South Africa and Mozambique, I took the opportunity to start taking and collecting mobile- and technology-related photos. Back then people were beginning to take an interest in the impact of mobile phones on the African continent, and NGOs were looking to use photos on websites or in project proposals, newsletters and presentations. On top of that, people were just generally curious about what was going on.

That collection now stands at over 150 photos, and covers everything from people around the world texting or making calls to pictures of shops, signs, mobiles themselves and other interesting examples of mobile entrepreneurship in action. The images are free to use – with citation – by non-profits or any other organisation seeking to profile the social impact of mobile technology. Visit the kiwanja Mobile Gallery for the full gallery of images, and for details on how to credit their use.