Revenue sharing is old hat in the business world; companies routinely collaborate and divvy up the profits. By comparison, revenue sharing online is relatively new. It is also profoundly different because anybody who uses a computer can be directly connected to a company that splits profits with them. Websites such as Revver, Flixya, Metacafe, and Atom Entertainment have all capitalized on this model by seeking out homemade video from amateur producers. But despite the groundswell of enthusiasm, these sites face an uncertain economic future.