http://mixergy.com/lawrence-watkins-great-black-speakers-int...
http://mixergy.com/ephren-taylor-interview/
Both are black founders - but there's so much more on Mixergy that you should check out. Andrew Warner is pretty awesome at that stuff.
I particularly liked Ephren's interview, I've been listening to Mixergy for a number of months now and he is still a stand-out for me.
EDIT I just remembered that Peter Gruber tells a great story about Magic Johnson pitching him on a chain of movie theaters. http://mixergy.com/peter-guber-interview/