“Digital media” refers both to content that exists in digital forms that is distributed through networked personal computing, and to new types of media businesses, industries, and content. There are many debates about the extent to which digital media has empowered online users and transformed traditional media businesses and professions. With the rise of digital platforms in the age of Web 2.0, a key issue has been whether or not tech giants such as Google, Facebook, and Apple are increasingly taking the form of media publishers, and the implications for policy and regulation.