When it comes to guitar courses, you'll be able to judge this on how many lessons you get for how much you're paying, how long you have access to the course, student testimonials — things like that.

Learn Guitar with Laura Marling The folk singer-songwriter demystifies her various tuning techniques, taking followers step-by-step through some of her most popular songs.

Zakk Wylde has revealed he uses online tutorials to learn guitar sequences, in preparation for his upcoming shows as a bandmate of Pantera.