I must admit that out of the hundreds of community sites I have been joining lately, I seem to have forgotten most within a day. But some like http://chokti.com/ are good and do offer useful features and services. I cheated a bit and simply registered my address and link as one of the most important places you should visit in France my place
There are a number of sites offering the Google Maps application with clever services, but I like the http://chokti.com/ one and wish them the best of luck with their site.