Here are some web sites I like

A great collection of math jokes



How research is done (a video demonstration).



PhD comics



Skulls in the Stars - a scientific blog by Greg Gbur



The Giant’s Shoulders history of science blog carnival



www.cut-the-knot.org



Mathematics Conferences

About Computerized Tomography


• Imaging in Medicine course from The Open University
  
• The discovery, rediscovery, and re-rediscovery of computed tomography
  
• How math can save your life: tomography
  
• Inverse Problems workshop at MSRI, July 2009