Last winter I took a course at Coursera called How to Change the World. It was a fascinating overview of world issues as well as some organizations working with these issues. Shining Hope for Communities impressed me so much that I ended up co-sponsoring a little kindergartener. I like how they are evolving. This is one to watch for sure! I do not know much about Africa, but I'm inspired to learn more when I read about Kibera. (I also recently read a book called Bingo's Run which took place in Kibera.) If you want to know more about girls in Africa, this is a good starting point.
Librarian-Educator living in Amherst, Mass.