Daftar Isi:1. Introduction Distributed Approaches to Making Science 2. Exploring Online Citizen Science in Depth A Tale of Three Projects 3. Who Takes Part in Online Citizen Science 4. Motivation for Participation From General Volunteerism to Online Citizen Science 5. A Closer Look at Motivation Citizens and Scientists 6. Divisions of Labour Patterns of Participation and Contribution 7. Participant Interaction From Online Forums to Virtual Communities of Practice 8. Realising the Potential of Online Citizen Science