What I like about this site is that it has both TABS and MIDI sound tracks, so you can play along the accompanement. I was looking for Doors' Roadhouse Blues, and found this site.
I found many web site with tabs for that song, and surprisingly they all are the same. Absolutely identical. So, it seems people are copying. This particular version is a little different from the way I play it. Actually, imho, it's less convinient that the version, which was given to me by Patrick.