Just got done adding these to the caresheet and though it deserved a post. You can find a herp vet through the following:

Association of Reptile & Amphibian Veterinarians (ARAV)
http://www.arav.org/

Herp Vet Connections
http://www.herpvetconnection.com/

VaHerper's Herpetological Resources
http://vaherper.future.easyspace.com/

VetWorld
http://www.vetworld.com/

Anipsid (MK's site)
http://www.anapsid.org/vets/index.html#vetlist

And don't forget other vets in your area. Just because your vet is mammal only doesn't mean they don't know vets who deal with reptiles!
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Brian Skibinski
Brian@MilwaukeeReptiles.com
WYSIWYG