I've use the Nike GPS/website to track my running ever since I first started seriously keeping track of it (a little over a year and a half ago). The other day I got an email asking me to complete a survey for them. I gladly obliged when they told me that I would receive a free shirt as a reward. I wasn't really convinced since it all sounded too good to be true, but it was. Today I got a free (expensive) shirt just for running, and I'm pretty positive that this is the closest to being "sponsored" as I will ever get in my whole "career."