Various art movements and foundations helping to grow the African art community:
Artifariti

http://www.artifariti.blogspot.com/
Destreet Art Foundation, Uganda

http://www.destreetart.webs.com/
Murals For Mali


http://www.muralsformali.blogspot.com/
http://www.muralsformali.tumblr.com/
More international visitors to Africa
SheOne (UK) in The Gambia
http://www.arrestedmotion.com/2012/04/streets-sheone-zionstreet-project-gambia-africa/
Swoon (USA) in Kenya