Hi, for all of you we´ve made new user-friendly interactive 3D model of solar system and night sky with real-time planet´s positions.

http://www.solarsystemscope.com/ (requires flash)

Application in a simple way helps students and laymen to understand the movements of the planets and to recognize constellations.

For astronomers it also brings other interesting views and various settings.

It's free and without needing to install, so definitely try it :-)