Algorithms

http://norvig.com/sudoku.html An essay by Peter Norvig showing how to program sudoku solver. Note: Read this if you are a software developer . Even better is to print it out and read it with a pencil.

http://www.cs.bc.edu/~straubin/cs381-05/blockciphers/rijndael_ingles2004.swf very cool flash animation that shows you how RIJNDAEL chiper works, step-by-step!

http://deim.urv.cat/~cpairot/dhts.html collection of links to notes and papers about DHT [Distributed Hash Tables] implementation and various related topics.

http://hplusmagazine.com/articles/ai/build-optimal-scientist-then-retire article about cutting-edge AI [artificial intelligence]

http://habrahabr.ru/blogs/php/73637/#habracut article in Russian that explains RAR archive format, and shows example php code that gets list of files out of the archive

http://www.youtube.com/watch?v=INHF_5RIxTE&feature=related great sorting video! :-)

http://blogs.msdn.com/oldnewthing/archive/2008/09/02/8918130.aspx for(i=0;i<N;i++) for(j=0;j<M;j++) b[j][N-i]=a[i][j];

http://anand.typepad.com/datawocky/2008/03/more-data-usual.html interesting post (it made to /.) about dataning and statistics. make sure u read comments as well.

http://yeda.cs.technion.ac.il/~yona/perl/lecture5/index.html