4. The method of claim 3 , wherein the classification assigned to each user is further based on the user's location, or a theme.
4. The method of claim 3 , wherein the classification assigned to each user is further based on the user's location, or a theme. 5. The method of claim 4 , wherein the classification assigned to the content item is further based on a content item topic, a content item location, a content item theme, or a content item source.