I live a few blocks away from Lake Michigan run about 20 miles a week. I've tracked my runs with a
Nike+ now for about 3 years. It's an inexpensive sensor for your shoe with a small chip to attach to an iPod Nano that tracks your pace, mileage, etc., which you then upload to your own web page.
The Evanston Sunrise just south of Dempster on Lake Michign, 6:15am, 08/29/2008