Jason Heath’s Double Bass Blog

Here are some geeky but useful sites about bow hair–why we use horsehair, how rosin works, different kinds of hair, etc:

Splitting Hairs
Study on Violin Bow Hair (also applies to bass)

Here are some general sites about the bow and how it works:

How the Bow Produces Sound
The Art of the Bow
General Bow Info
A Bow on the Couch