Re: Wikipedia is far from perfect...
It's far from uncommon to find that many of the URLs at the bottom of a Wikipedia entry return 404 errors. Nothing makes you wonder about the credibility of an article when you can't check the sources. (This is the sort of thing that used to drive me crazy about some academic papers. "No references? So you came up with this all on your own? Ri-i-ight.")
Biting the hand that feeds IT
