We announce winners to the Community via email and publish the top rated designs on our winner's page. If you have ever submitted to a challenge (and have not unsubscribed), then you are on our email list and will receive the winner's announcement email that goes to the whole community.
Special Prize winners (detailed in each challenge description) and guest judges' picks are announced a few weeks after the winners announcement in a post to the Winner's section of our blog, Julep.
If you won, you'll notice that you have a new "winner" badge on your designer profile and you'll receive a file request email from us soon. Congrats!