I'm currently signing up for a Pixoto account where you can enter your photos into a competition for prize money. Essentially people compare your photo with one other one and if they vote on yours your points go up. For each person the photo your photo is compared with is different. This is a weekly competition and the photo with the highest points at the end of the week will win a prize. Photos in the top 20% will receive an honorable mention. I've entered six photos to this website now.