It's languished for a while, but Rob Galbraith's extremely useful and detailed database of performance tests on CompactFlash and SD media has just been updated. If you've got burning questions about whether it's worth the extra bucks for a flashier flash card, this is the place to look. Recent additions include tests with the Canon EOS 40D and Nikon D300.
CNET Top 5
Sci-Fi inventions you don't really want
Five most awesome, unrealized inventions of science fiction that you think you want, but really aren't that practical.