A handful of technology, media, and telecommunications (TMT) companies have come to dominate various aspects of the Internet, including access, search, social networking, on-line shopping, the sharing economy, advertising, and content creation and distribution. These players were able to enter the market with unique offerings or business models, quickly shaking up industry after industry. These disruptors appear to have a stronghold in their chosen markets, but ongoing innovation in the Internet space continues to usher in new businesses that could well end up disrupting the disruptors.