This happens all the time: a link to the online version of a lesson is dead. Had it happen with Premier Guitar a while ago and again just now with a simple Scott Henderson lesson in Guitar World. "Page not found." So I search the site for "Henderson" and nothing comes up. I understand that guitarists and writers are often Type B personalities -- I'm both a guitarist (bad) and a writer (a little better) and way Type B -- so these magazines need to employ some Type A's to make sure their web lessons work right. It looks sloppy and it's frustrating when they don't.