Zooniverse is an online, people-powered research platform. Volunteers can help project teams classify data, such as wildlife images or other scientific records. The platform says no specialized background is needed, and each project provides a tutorial. Participation is free; an account is optional for classifying, though an account can track contributions. Project availability and task language vary, so check the live project page before choosing one.
The platform is run by teams at the Adler Planetarium, the University of Oxford, and the University of Minnesota. Participation happens online and is open to volunteers worldwide, subject to individual project terms.
Sources:
