My apologies to William Vining for calling him David and for not recognizing his recent move to SUNY Oneonta! This is what I get for Googling. Be that a lesson to ya'all! 3A: ChemPrep: Self-paced OWL preparation for first semester general and organic chemistry, Beatrice Botch, Roberta Day, William Vining (University of Mass Amherst) <http://www.stolaf.edu/depts/chemistry/bh/confchem/confchem_s2006.htm#botch> D/a/v/i/d WILLIAM Vining <http://employees.oneonta.edu/viningwj/> is a professor of chemistry at U/ /M/a/s/s/ the State University of New York, Oneonta. (CONGRATULATIONS, Bill!) His principal interest lies in developing and testing educational materials and methods for chemistry. He has coauthored several outstanding CDs that include hundreds of videos and animations, interactive simulations, tutorials and exercises. Bob Hanson -- Robert M. Hanson, hansonr@stolaf.edu, 507-646-3107 Professor of Chemistry, St. Olaf College 1520 St. Olaf Ave., Northfield, MN 55057 mailto:hansonr@stolaf.edu http://www.stolaf.edu/people/hansonr "Imagination is more important than knowledge." - Albert Einstein