Sign up for the Diabetic Runner 2008 Challenge! To sign up, just select the challenge length, either 1000 miles or 500 miles, enter your name as you would like it to appear in the participants section, enter your blog/site URL if you have one, and your email address. Regarding your email address: it will NOT be posted on the site for others to see, nor will it be distributed in any other fashion, in fact you are free to leave it blank.