Has anyone had a look at this site, it seems like it has a lot of cards. Something like a cross between a language flashcard site and a social networking site with a focus on teachers. I haven't had a chance to really look through it but I thought I would share and see if anyone else has used it at all.

http://www.wordchamp.com/lingua2/Splash.do

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Very nicely done. They have also sound samples for the Japanese words in the quizzes. I can see why teachers would want to use that for making lessons for their students etc.