Tumblr is a microblogging and social networking website founded in 2007. It allows users to post multimedia and other content to a short-form blog. Users can follow other users’ blogs, as well as make their blogs private. Tumblr is known for its wide variety of content, including art, photography, music, fashion, and politics. It is also popular for its reblogging feature, which allows users to quickly share content from other blogs. Tumblr also has a strong community of users who interact with each other through likes, comments, and messages.