References

C/C++ Interview Questions:
http://www.cpuniverse.in
http://www.acetheinterview.com/
http://www.moskalyuk.com/
http://www.cs.unc.edu/
http://www.cis.temple.edu/

C/C++ Notes for Interviews:
http://leepoint.net/
http://www.parashift.com/
http://cslibrary.stanford.edu/

Microsoft Interview Questions:
http://halcyon.usc.edu/
http://www.4guysfromrolla.com/
http://www.sellsbrothers.com/
http://www.acetheinterview.com/

Puzzles:
http://www.techinterview.org/
http://puzzle.dse.nl/
http://pub13.ezboard.com/

Operating Systems Notes:
http://williamstallings.com/

Win32 Tutorials:
http://www.winprog.org/tutorial/
http://www.gajits.com/

Data Structure Notes:
http://ciips.ee.uwa.edu.au/
http://www.csl.mtu.edu/

Software Testing Notes:
http://hebb.cis.uoguelph.ca/
http://www.darkshire.org/

Mathematical Puzzles
http://www.syvum.com/teasers/
http://www.eduplace.com/math/brain/
http://www.brainbashers.com/
http://barryispuzzled.com/
http://www.braingle.com/