Note: Succubus on Top is called Succubus Nights in France and the UK. Many of the other books have undergone title changes in their respective languages as well.
Dark Swan Series
Outside of the United States, this series is only being published in the United Kingdom and Germany so far. A French edition will be out soon.
Vampire Academy Series
These books will also eventually be translated and available in Portugal, France, Russia, Poland, Romania, Bulgaria, Turkey, Italy, South Korea, Greece, Hong Kong, Taiwan, Denmark, Israel, Serbia, the Netherlands, Macau, and Lithuania, Croatia, China. I have no information on release dates for these or where to buy them.
Last updated mid-2010. I have a lot more now that I haven't posted!
United Kingdom (UK Vampire Academy covers are the same as the new U.S. ones)
Germany (Georgina 1-3, Vampire Academy 1-3)
Sweden (Vampire Academy 1 and 2)
Russia and Spain (Succubus Blues)
Brazil, Turkey, and Italy (Vampire Academy)