Lots and lots of information, especially for a beginner like me. Some tips contradict things I've read elsewhere, maybe even at WholeNote?, such as advising against a good tug on new strings to get the stretch out of them. Read why. In fact, he has the most thorough and useful descriptions of how to restring a guitar I've seen. And I'll NEVER leave my guitar in a closed car in the summer, even just for a minute, after seeing his horror pics.
BTW, this is the second set of reviews of FRETS.COM. Check out Nov & Dec '99. I'd give credit but I forgot to write down their names.