Udemy is a website that empowers anyone to teach and learn online. On Udemy, there are thousands of online courses from the best instructors in the world. Furthermore, if you're an expert you can share your knowledge by creating an online course on Udemy. Udemy's platform makes it easy for experts to build an online course. Instructors can use video, PowerPoint, PDFs, audio, zip files and live classes to quickly build a course and share their expertise with anyone in the world.