From Slashdot:
Various Microsoft news tidbits contributed by numerous readers: Phoebus0 notes that Microsoft's Vice-President in charge of Windows development states flat out that Microsoft products aren't engineered for security, absolutely guaranteeing he'll have tomorrow's Ditherati quote. Many readers submitted this Knowledge Base article stating that Microsoft is mystified by a wave of successful hacks on assorted versions of Windows (there's also a news report on this). Microsoft has another security bulletin out on the digital certificate spoofing bug that has caused them so many problems recently.
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This site has really cool-sounding stuff (which I like): http://www.paulgraham.com/, including a Bayesian algorithm spam filter, and a LISP-like language they're creating from the ground up called "arc."

http://www.parseerror.com/ -- a site of interesting geeky links.