The worldwide web most of us are familiar with is a place populated by about 2.5 billion people who go online to find information, entertainment and shopping, or to stay in touch with friends and share ideas with colleagues. The internet was made by people, for people. But now it has become the Internet of Things (IoT). Experts predict that in a few years there could be 100 billion devices—actual physical things—connected to the web. Some of these devices are online today and more, many more, are coming soon.