Go look at the sky inside
If you've not seen it yet, google earth is now google sky. You can see all the hubble, chandra, and other high energy shots of the sky. This is one of the greatest ways to figure out what your looking at in the night sky.
Also if you have google earth, it has the sky option, so you can input your location and determine what constolations you are looking at and what galaxies you are looking at.... ever wonder where the picture above was? Go to Hubble show case, look for pillars of creation....