Stefan's Florilegium Archive
All kinds of arcana (culled from various mailing lists / newsgroups) on period stuff - including a good section on traditional crafts.

Marking a helical line around a Cylinder.

Scroll Carving Tools from Hacksaw Blades
detailed and fully step by step with drawings and charts for tempering and annealing the blades.

Woodworking: Thoughts and Ideas
Workbench tips, tool sharpening, planes and other good stuff...

Michael Black's Casting Manual
Moldmaking for the paleontologist - lots of good tips and details

STAR WARS ASCIIMATION - Main Page
Incredible and actually geniunely entertaining....