A friend of mine, David Crowder, recently attended the Humboldt State University Explorations in Afro-Cuban Dance & Drum workshop. He took the opportunity to interview one of the instructors, David Peñalosa, while he was there.
Among some of us, David Peñalosa is affectionately referred to as "Dr. Clave". David Peñalosa is known for his in depth analysis of clave and research on the inter-connectivity of Afro-Cuban and African rhythms. In this interview David Peñalosa gives a brief description of his involvement and study of percussion.
David Crowder in addition to the interview also has an excellent website with several resources for rumberos and folkloric music.