The W3C Link Checker works nicely. Found a broken link on the first page I tested – the author (not me) had slipped an extra space in before the www. Add this to your bookmarks.
You are here: / / W3C Link Checker
Folks, I'm sorry, but the comment spammers send about a million more comments than real readers do and I can't stand the spam. I've disabled comments again. Feel free to respond to @miraz on Twitter or to email me through the contact form on the site.