JamPlay is hitting it big in the guitar world. The website is a guitar player community service which broadcasts high-definition video guitar lessons. They have brought together guitar instruction with interactivity... even allowing you to ask questions to their video instructors. They feature 4-5 guitar instructors to give you a selection in teaching methods and musical taste, which makes all the differene in achieving your goals.
They teach by "lesson set" instead of just flopping out a ton of small video clips. They start with the very basics like tuning your guitar, finger placement, and basic chords, and move on to finger-picking, palm muting, hammer-ons, pull-offs, and many more advanced topics as you progress through the lessons and songs that you want to learn. Lessons that actually make you a better musician!