Centipedes and Millipedes - University of Nebraska Cooperative Extension in Lancaster County factsheet and optional audio on centipedes and millipedes. - http://lancaster.unl.edu/enviro/pest/factsheets/012-93.htm
Introduction to the Myriapoda - UCMP Berkeley's outline of myriapod history, biology and taxonomy. - http://www.ucmp.berkeley.edu/arthropoda/uniramia/myriapoda.html