'The book is meant to function as a springboard for sociometric research on the social structure of online communities, and may be useful to beginning researchers facing the challenges and opportunities of studying unconventional and problematic human online relationships.' C. Wankel, Choice
1. Introduction; 2. Facebook; 3. Virtual worlds; 4. Open-source software; 5. Wikis; 6. Citizen social science; 7. Digital government; 8. Cultural science.