Crowdsourcing uses online platforms like Amazon Mechanical Turk to distribute simple tasks to many workers. Zooniverse is a platform that uses crowdsourcing for scientific research projects, ensuring tasks contribute to real research. Citizen science websites like SciStarter allow volunteers to participate in various science projects. Cochrane could use crowdsourcing to speed up reviewing literature for systematic reviews by breaking tasks into smaller pieces distributed to many volunteers, as long as tasks are clinically relevant and volunteers are motivated and supported.