Virgin London Marathon
If you want to watch tomorrow's London Marathon you can use the London Marathon Map to find a good view point. The map includes a spectator guide that can help you find a lively or quiet spot to view the race.
The map includes mile markers for the course and also allows you to view Street Views of each mile point.
London Marathon in Street View
The London Marathon Street View map let's you follow the route of the London Marathon. The map shows the Street Views for all the mile markers along the route and also lets you view points of interest along the route, like Buckingham Palace and the Tower of London.