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Tumblr is a microblogging platform and social networking website. The service allows users to post multimedia contents such as text posts, images, video, quotes, or links to a short-form blog. Users can make their blogs private or follow other users' blogs. Tumblr blogs allow people to submit comments, either as themselves or anonymously, to the blog for a response. As of 2016, Tumblr hosts over 292.7 million blogs and have 555 million monthly visitors.