In March 2010 James from djembefola.com interviewed Michael Taylor from Holy Goat Percussion.
Michael is based in Chicago and has been involved in the djembe community there since the 90's. He is also the director of Tam Tam Mandingue Chicago and this interview covers his experience and his advice regarding certification.
Learn some music terminology you'll need.
More djembe exercises to develop your co-ordination, technique and sounds.