If you haven’t visited Vision Music yet, you should. Before they went to a membership plan I was able to print off essentially every page and download every MIDI file they had. They’ve obviously updated the site quite a bit since then, and I have yet to spring for the membership cost.
There are still some free pages available and some great exercises and tunes worth looking at online at least.
Of all the guitar sites on the web that I have visited, this one is exceptional.