A long time requested feature, bike directions, have been added to Google Maps. Both the Google Blog and Google Lat Long Blog have details about the addition.
First, here is a video demo:
- Dark green indicates a trail;
- Light green indicates a dedicated bike lane along a road;
- Dotted green indicates roads without bike lanes but are more appropriate for biking, based on factors such as terrain, traffic, and intersections.
To try it out, go to http://maps.google.com/biking and to submit more biking routes or report issues, go here.
Forum discussion at Google Maps Help.

Comments:
NookSurfer
03/10/2010 07:17 pm
Awesome addition. I use Google maps when I'm driving. I'm eager to see how well the GPS will work on the handheld and how accurate the locator will be since you have to be more precise when you ride a bike. Either way, great news that Google listens to their customers requests.