Just happened to be thinking about Africa today. I checked some of my links and looked over a few blogs written by expats living in Africa. I also happened to run across this news article: Millions face hunger in arid belt of Africa. I read that article right after viewing this report (The Famine Scam) about the 2005 "famine" in Niger. Fascinating! I have to say that my eyes were opened by that report; it's given me a completely different way of looking at such crises and the impact of the help that is provided. Highly recommended viewing.
I have a lot of respect for what's been done by the Garvi family in Niger. Information about their work can be found here: Eden Foundation. That seems like the ideal way to contribute. Their support page is here.