Double Dragon Publishing, and the various Amazon incarnations such as Amazon and Amazon UK. It's also available at Barnes & Noble, and 8for those of you who like using Paypal) Fictionwise.
My mystery/thriller Murder at Mcmurdo is available direct from LL-Publications, Amazon, Amazon UK, all the other Amazons, and Barnes and Noble.
My latest book, a short story collection of RPG-inspired tales called Down in the Dungeon, was released by Writers Exchange Ebooks, and is now available at Amazon, Amazon UK, all those other Amazons, Barnes & Noble, and Smashwords.
So now there are more ways to read the stuff by yours truly! More books coming soon!