20 Things They Don't Want You to Know
theodp writes "PC World spills the beans about a bunch of things technology companies would rather you didn't know, including the lowdown on exploiting Windows' bad security, unlocking cell phones, using an IPod to move music and useless specs." Nothing groundbreaking, but might be a good primer for the non-techie in your life.
I would agree that extended warranties on PCs aren't worth it, but my rule is:
1) If it's something that goes on the shelf/table and just sits there, forget the warranty: TV, DVD player, stereo, laptop, PC, etc
2) If it's something you carry around, small, expensive and likley to break when dropped, consider the warranty: CD player, tape system, mini-disc, PDA, etc
This has served me in good stead, the two or three extended warranties I have gotten have definitely paid for themselves. But then I'm a klutz.