We've been asking you to send in your I-Reports and you've been answering the call. Now, in the spirit of Exchange, we'd like to hear what you think. Check out the gallery of our recent picks from the photos, videos and works of art posted in December, and then rank your top 10 favorites below. We'll showcase the winners on Exchange. Voting lasts until the end of January. Keep those submissions coming, and check out the results of our first, second, third and fourth rounds.