Google Maps and sustainable transport

I have found a great site that is a mashup of google maps. http://www.bikely.com. The idea is you can search the user entered database for the best way to get between various points by bike. The website also allows you to sign in and create your own bike route so you can share your favourite rides with others. You can even put comments at each point that appear as pop-ups on the map. I'll have to start riding my bike more so that I can contribute.