I get mine at mrsnuff.com
Be careful with Mr Snuff - I had an order go missing where the tracking just stopped mid-voyage and USPS couldn't find the package. I contacted Mr Snuff several times over the course of a couple weeks about their delivery guarantee and got no response. I sent a final email telling them I was filing for a chargeback on my credit card due to no communication and I had a response within an hour where they begrudgingly offered to reship. They even tried to throw guilt by saying it costs them money to track a lost package and reship and I should be happy for the packages that DID make the complete journey. I merely quoted their own guarantee ver batim and decided to only order from Toque/Artisan Snuff from then on.
Toque/Artisan Snuff is cheaper, anyway, and customer service is second to none.