The most relevant I found http://www.ted.com/talks/lang/eng/euvin_naidoo_on_investing_in_africa.html http://www.ted.com/talks/lang/eng/euvin_naidoo_on_investing

The most relevant I found http://www.ted.com/talks/lang/eng/euvin_naidoo_on_investing_in_africa.html http://www.ted.com/talks/lang/eng/euvin_naidoo_on_investing_... Though I don't know if is about angel investing, the one OP watched.