As a bonus, you'll get lots of interesting facts about that planet. Good luck!
For in-depth information on these planets and other celestial bodies, I recommend:
NASA -- So much here you could get lost for weeks! Awesome photos! Need I say more?
National Air and Space Museum Website -- Good photos and explanations
Imagine the Universe! -- A NASA site that's a great place to start
Astronomy Today -- keep up-to-date on news and what's happening in the sky