Some sites I think you could be interested in :

• www.laguitare.com
  A site very complete
• www.djoliba.com
  Instruments making and percussions
• fr.wikipedia.org/wiki/Guitare
  The guitar by Wikipedia
• www.luthier-amateur.org
  Very good works by amateurs !
• www.lutherie.net/mario_fr.html
  About the Selmer model... and Mario...
• www.about-django.com
  Everything is in the name of the site...

On the web

Internet is a very good way to find anything about your passions. Here are some of the sites I use to surf. Can be a good start to go further.