• Steve Dutch's website: Steve's website provides great resources for students learning about geometric analysis techniques in structural geology
  
• Rick Allmendinger's software provides a useful, free resource for structural geologists at all levels of their careers. Please be sure to cite him if you use the software in your theses and publications.
• This site at ETH Zurich has some great resources, just be sure to click on the little Union Jacks to get the English version.
• VIEPS/Mainz Deformation Microstructures Course
  
• Website for Haakon Fossen's book, Structural Geology.
• More about Mohr circles, again from Steve Dutch.
• A quite amazing collection of structural geology animations by Rob Holcombe.
• The online resource for Plummer, McGeary and Carlson's "Physical Geology" has some great animations. Just select a chapter and click on the animations and movies link. Its a good idea to have the book to hand. 
• van der Pluijm and Marshak's book has its own website too.
• My new earthquake hazards chapter is presently available on Mark Quigley's website. Also check out the useful supplementary information.
• Just starting to find your feet with Leapfrog? Have a look at their useful blog