A bunch of folks, me included, are trying to convince Google to add bicycle routes to Google Maps:
GoogleMapsBikeThere.org was created to ask Google to help us make the world safer for bicyclists by adding bicycle routes to Google Maps. Please sign the petition if you have not done so yet, and subscribe to this blog so you can keep abreast of progress and how you can help. The 'Bike There' is because that is the option we want to see added to Google Maps, along with 'Drive There' and 'Take Public Transit'.
Sign the petition, yo!