I dont think it will impact bitcoin a great deal if China or Russia bans Bitcoin. The great thing about bitcoin is that banks or governments can't control it. They maybe could limit the the ease of use of it by blocking sites from there country.. but we all no theres ways to get around that. China has already tried to intimidate the bitcoin market by threats of banning it, but it hardly damaged the price. Plus its much more beneficial if they embrassed it. Bitcoin is open source and the people currency, as long as the majority want it there it will always be.

BTC The Future!