It was mentioned around here a while ago that it would be really nice if Google Maps would let you define your own route between two points, instead of just making you take the route it thought it was most efficient. Then you could compare the distances of different routes. At the time I thought it would be really hard to do with a web interface. That just goes to show how much I know about web technology. The Gmaps pedometer does exactly that, and it’s really easy to use. For example, here’s the bike route I took to and from work yesterday: