• Reported by Nate

Brain Upgrade Initiative by codebitch makes an important case for the use of valid markup. I might even suggest that this is of a higher importance than "intended use markup" (if I can make up a phrase) - meaning that table based layouts which validate might be better than non-valid css based layouts. Of course there is a spectrum of errors we are capable of introducing. A typo which invalidates a page can be much less damaging than improperly nested markup (both are invalid, but one has more impact). (link via Meryl)