NASA has n exciting Exoplanet visualization tool at http://eyes.nasa.gov/exoplanets.
You can see where in the Milky Way we have discovered exoplanets. You can fly to an exoplanet system and see which planets lie in the habitable zone. You can compare the planetary system with an overlay of our solar system. All data driven from the Caltech Exoplanet Archive, it was a finalist in the SXSW Interactive awards in the Technical Achievement category. It's amazing to see how far humans have come in the 50 years since the Drake equation