DogTread (dogtread.com) launched its "Get Fit - Play Fit - Stay Fit" Facebook challenge. The company will give away three dog treadmills to Facebook fans that submit a picture of his or her dog along with the pet's name, breed and how the contestant heard about the contest. The submission period for entries is open through Oct. 1. Entires will be entered into a voting period Oct. 2—Nov. 1. The three with the most votes will win. Winners will be announced Nov. 15.