These flashcards come from the lessons in the Practical Chinese Reader. They include simplified and traditional characters. I'm very interested in your input, including errors/typos you may find. Textbooks 1-3 are here.
These flashcards originate from the database at HSKFlashcards.com where they are available in other file formats as well. I originally got them from Matti Tukiainen's website and Dave Hiebeler's website. I converted these lists to UTF-8, added the traditional characters, made some small fixes, and added them to the HSK Flashcards.com database. Matti Tukiainen released books 1 and 2 under the terms of the GPL (http://www.gnu.org/copyleft/gpl.html).