The French Knoppix site, http://knoppixfr.tuxfamily.org/, has translated their hardware database into english: http://knoppixfr.tuxfamily.org/index.php?page=hardware There are not a lot of listings yet, and the site surely doesn't reflect the large amount of hardware that works under knoppix, but hopefully it will grow.
Vintage Dream Writer NTS 325 Computer Basic Language Notebook “Untested “
$30.00
Tumi Black Nappa Genuine Leather Daypack Laptop Backpack Vintage
$190.50
Vintage Apple Newton eMate 300 Laptop Computer Model H0208
$75.00
M&M's Data Pro Organizer Touch Screen With Pen Vintage RARE FIND NEW SEALED
$45.00
Vintage Power Computing ADB Macintosh Compatible Keyboard Membrane Untested
$29.90
Vintage Compaq 141649-004 2 Button PS/2 Gray Mouse M-S34 - FAST SHIPPING - NEW
$8.99
Datacomp DCK 84 BRAND NEW Vintage Keyboard
$39.00
Drakware ADB2USB - vintage Apple ADB to USB keyboard adapter
$29.95
Vintage Mid AT Computer Tower Case with PSU + CD Drives/Floppy
$74.99
Vintage Atari 800XL Computer *UNTESTED* No Power Cords Or Cables
$99.99