http://www.guitarists.net
2. Vintage Guitar Online
http://www.vguitar.com
3. Guitar.com
http://www.guitar.com
4. Guitar Notes
http://www.guitarnotes.com
5. GuitarBase
http://www.gbase.com
6. Guitar.net
http://www.guitar.net
7. GuitarSite.com
http://www.GuitarSite.com
8. OAGL
http://www.oagl.com
9. Better Guitar
http://www.betterguitar.com
10. The Fretboard
http://www.fretboard.net