http://www.abclearnguitar.com/major-scale.html
http://www.guitarchords247.com/
http://www.all-guitar-chords.com/index.php
http://justinguitar.com/en/SC-000-Scales.php
http://guitaralliance.com/guitar_lessons/
http://guitar.about.com/
http://www.guitartricks.com
http://www.chordie.com/
these are fairly good to get you started but you have to pay to get more intricate lessons. formal, in person lessons are probably the best idea. but practicing an hour or two a day is imperative no matter which way you choose to learn.
at chordie.com (and others like it - search "guitar chords and lyrics for `name of song and artist`") you can look for songs and artists that you like.
also you can get chord lists that show where to place your fingers on the fretboard at:
http://www.guitarchords247.com/
hope you enjoy these.