Guitars!
of interet to some of my guitar playing friends... these high tech art-meets-craft guitars www.teuffelguitars.com
Also, for guitar techies, former Bowie Axe-Man (as they say in rock journalism) Reeves Gabrels discusses technique and rigs and equipment and all that to quite astounding depth on his website Q&A Page
...and another of my fave guitarists goes into even more detail about such stuff on his website: 'splattercell.com'