Music Resources - Free production music by (the awesome) Jason Shaw.

Music Lessons (Private Tuition)

Guitar Lessons Cardiff - Guitar Teachers in Cardiff and the surrounding areas.

Guitar Lessons (Online) - All things acoustic guitar - news, views, grooves & lessons.
Guitar Repair Bench - A site dedicated to providing the best instructional articles about guitar repair, maintenance, and guitar building on the web, so you can repair your own guitars.
TrueFire Guitar Lessons
Enchufala Guitarra - Blog with guitar lessons/tutorials of heavy metal songs.
Guitar For Anyone - Free online guitar lessons using audio and video. This site also features a tablature section and links to many guitar and music resources.
Guitar Lickers - Resources for guitarists to reach their goals.
Guitarist Source - Free Online Guitar Lessons and Information for Guitarists.

Guitar Tabs

Cleartabs - Official guitar tab download store and FREE guitar lesson archive.
TabCrawler.Com - Guitar Tabs
Video Tabs - A collection a youtube's finest video tabs, lessons, and performances.

Music Gear

Hear the Music Play - In depth research into what instruments and music accessories will best help you play at the highest level.