This page is for links to pedagogical explanations of techniques and phenomena endemic to LIGO, with a target audience of summer students and visitors. It's called "Tutorials" because that's easier to spell.
Feedback for physicists: A tutorial essay on control by John Bechhoefer
Laser Beams and Resonators by H. Kogelnik and T. Li (a good introduction to Gaussian beams)
List of HowTo's
IFO Stuff
PSL Stuff
Computer Stuff
Restart computers: Computer_Restart_Procedures
/How to copy an entire directory from a remote computer by the terminal window in Linux
COMSOL4
Social Stuff
Make Coffee