Another site, though free, is
www.apertureacademy.com but even though I've had a daily winner, I've discovered if you don't either shoot like the author of the site, or shoot a lot of HDR, your opportunities for being a winner are very limited.
Not to bust your chops, but I'd never pay to belong to any online forum, including this one and I love this place. This place is the real deal and it is because it is free, everyone has a good chance at being a mini or monthly comp winner and for the most part, the work is superior to anything I've seen posted elsewhere. Chalk it up to a bad experience; it's not worth an ulcer.