Printing cards is most effective technic in learning foreign language. Here is a simple and awesome generator of printable cards with automatic reflect of image. Just type your words and translation then press "Foreign view" button and "print". Then revolve paper in printer, press "Your language" button and again "Print".
We are using open source teleconferencing technology to conduct 1-on-1 and group classes via video, voice, flash technology for displaying Chinese characters.