Just a List of Useful Websites
Acoustic Soundboard : A site for enthusiasts of acoustic guitars. Very friendly and helpful place. Highly recomnended.
12bar.de: A wonderful site for the blues enthusiast where I found a lot of support, help, and good friends. My second home.
JamPlay.com: A guitar teaching site with a wide range of instructors, video lessons, forums, Live Q&A sessions. All very professional and a great help in learning how to play guitar better.
AxesRUs: If you're in the UK and want to build or upgrade a guitar a great source of parts and run very efficiently and with good and prompt advice.
Jamtracks.ru: For a collection of blues backing tracks. Once you find the non-russian language version.
Soundclick: For uploading recordings and being able to monitor how good a work might be by how many downloads are made.
GuitarPlayback.com: David Wallimann site - backing tracks, lessons, etc. - payments needed buy high quality.