Tumblr is a microblogging and social media platform founded in 2007 that allows users to post various types of media. It has over 174 million blogs and 78 billion posts. Users can easily sign up through email and create blogs to share photos, videos, text and more with followers. Businesses also use Tumblr for branding, advertising and interacting with customers given its multimedia and engagement capabilities. While advertising and selling blog themes generate revenue for Tumblr, its monetization strategy now relies more on algorithms, data and search through its acquisition by Yahoo.