Great source for Effect Pedal Mods

Effectrode builds 'high-end' guitar effects pedals using audiophile grade componets and triode tube technology.

DMB Effects Pedals - Custom effect pedals and effect pedal mods. Check these guys out!

A great resource for d.i.y. music projects. Tonepad is dedicated to providing ready-to-use layouts for effects and amplifier projects to the do-it-yourself music community.