lecture notes on compilers
http://www.cs.sfu.ca/~anoop/courses/CMPT-379-Fall-2006/
online lectures and notes of various universities
https://www.cs.tcd.ie/~htewari/courses.html
notes on data communication
http://www.geocities.com/goldenziby/dc.html
video lectures by IITs
http://web.iitd.ac.in/eklavya/vediocourse/index.htm
personal view of a person on LINUX
