i want t0 learn guitar.

Barnes and Noble has a great course that is free, you just need to buy the book. http://university.barnesandnoble.com/

have you had any formal lessons in guitar before? how much do you already know about playing? find a teacher or a school for lessons in your area. make sure you can spend time for the lessons and for practicing. playing a musical instrument is a lot of fun, but to be really good at it, you have to want to practice.... just curious, what made you choose the guitar as opposed to other musical instruments? do you play any other instruments?