American Kennel Club 2016 38th Annual Family Dog Photo Contest
The AKC 38th Annual Family Dog Photo Contest just started April 15, 2016, but the deadline for entries is postmarked by Jan 31, 2017. First place is $500. Second place is $250. Third place is $150. Rules for the contest can be found here: http://www.akc.org/pubs/family-dog/photo-contest/rules/ . I like this contest best because it does not depend on user votes, but the AKC votes on the photos themselves. Good luck!