Via Stuart I found out about this amazing site, Chromoscope with added exoplanets (through Exoplanetology). Chromoscope is amazing enough, it shows you the galaxy at a range of wavelengths from gamma-ray to radio, controlled by a slider, and you can also explore the maps further with Wikisky or the World Wide Telescope.
But with the exoplanet add-on it shows the location of a number of exoplanetary systems (click on the exoplanet symbol for info on that system). More information here, and you can read the blog. Head over right now and have a play.