San Lorenzo Unified School District (Substitute Teacher), Alliant International University '07 (Preliminary Multiple Subject Credential), U.C. Berkeley '73 (Mathematics for Teachers, Alpha Gamma Omega), Castlemont High School '69, Neighborhood Church (http://www.3crosses.org/), http://www.facebook.com/dwongcastle, http://www.friendster.com/wongcastle, http://www.linkedin.com/in/wongcastle, http://www.mychurch.org/wongcastle, http://www.myspace.com/wongcastle