Michael (Михаил)!
You are a GREAT hunter!!
I've spent a fortune on audio resources and the Shtooka audio project is one of the greatest things to have happened on the web.
You know, flashcard learning systems are central to my learning experience. ProvaLingua's advantages are it's unique ability to work with grammar. Add creating games and allowing users to share "stacks" with each other, and I vote it the best of the free.
Your resources are especially valuable because they can be exploited both by beginners and advanced students alike.
Большое спасибо!
