Users have the ability to submit content such as links, text posts, images, and videos. In turn, other people have the ability to vote on the content that is posted with either an “up” or “down”. This means that they either agree or disagree with the post. Reddit is very different from other websites because posts are organized by subject into boards called “communities” or “subreddits”. These communities cover a wide variety of topics, including, but not limited to: politics, news, science, cooking, sports, pets, fitness, books, movies, video games, movies, and art. Submissions that tend to have more “up” votes appear towards the top of their categories because they are considered more relevant. If a post receives enough “up” votes, they appear at the top of their relevant page. Reddit has strict rules against harassment in these groups and occasionally has to close them when there is inappropriate behavior.