Item ratings are on the right. Apart from the general rating, you may rate the item in different categories of your choice. By clicking on the stars you rate the item, and by clicking on the number of ratings below the stars you can see the rating statistics.
Here you can add photos and videos. Their order depends on the number of votes, and you may vote by clicking on the thumb up or thumb down that appear below the photo or video after you place your pointer above them.