Here's a site I found that I've found very helpful. Tabnplay lets you insert a URL for your favorite song,converts it into an easy to follow format showing how play guitar and lighted dots on the appropriate strings and fret positions. They also have videos showing chord positions. Before anyone gets too excited this site is still under development and not everything or all songs are available. Still a great site and it looks to only get better with time. Go to http://www.tabnplay.com/  Check it out you may find it amusing if not helpful

This is a cool site. Even though it is yet in beta, I've got to say that I'm impressed with the user interface. But what impresses me more is that it could convert the URL's song into chords. But the question is if it is accurate.