Current Classes taught by Sam Wormley (multiple institutions)     Home Computer Security (important)     Mac OS X - Leopard, Snow Leopard & Lion     iPhone, iPad and iPod-Touch         PHS 142 M01 Principles of Astronomy       Digital Photography - for Photojournalists     Digital Photography - Point and Shoot Basics   olli.dp1   mcc.dp1     Digital Photography - Advanced dSLR Level   olli.dp2     Digital Photography - Field Shoots   olli.dp3   AmesPhotoWalk         Voyages of Discovery: Copernicus to the Big Bang     Iowa Weather     Global Climate Change Resources