Racklove is a site dedicated to helping stolen bikes find their way back home. Not a bad idea though one has to wonder at how effective such a site may be. Certainly better than no site, so you might as well bookmark it. Of course, if you have heavily modified your bike like the one below you probably don’t have much to worry about.
Regardless, it’s always a good idea to lock your wheels up no matter where you are. Years ago I had a bike stolen when I ran into an apartment building to deliver two Post-Bulletin newspapers; I was in there about a minute and in that short amount of time someone took my favorite ride.