I just wanted to draw everyone's attention to the new ilearnmusic.com
website.  There are a number of free guitar lessons, as well as a
lyrics and guitar tab search tool, and more.  Feel free to post guitar
lessons, as well as brows our other categories.  Click the link for the
guitar section:
http://www.ilearnmusic.com/index.php?option=com_content&task=category&sectionid=6&id=73&Itemid=50

or go to
http://www.ilearnmusic.com
and the guitar lessons are the under instrument lessons section