Citizen science is a research collaboration between scientists and volunteers who provide data for education, conservation, and environmental protection. Volunteers, often the locals in the area, provide data on species occurrence while researchers perform distribution mapping or other data analysis. Social networking sites including Facebook,…

Citizen science, in which volunteers work with professional scientists to conduct research, is expanding due to large online datasets. To plan projects, it is important to understand volunteers' motivations for participating. This paper analyzes results from an online survey of nearly 11000 volunteers in Galaxy Zoo, an astronomy citizen science…