Online marathon simulator shows promise but needs leg work

"Using a Google Earth plug-in to simulate (in 3-D) 11 running, mountain bike and cross-country ski races around the country, including Chicago, the site allows users to relive runs, study the course of an upcoming race and overlay their races against other competitors."

http://www.chicagotribune.com/sports/chicagomarathon/chi-09-marathon-site-oct09,0,6542462.story