References

• 2005Why should i share? examining social capital and knowledge contribution in electronic networks of practice3,534 cited
• 1998Understanding and assessing the motivations of volunteers: A functional approach.2,762 cited
• 2000Volunteering1,789 cited
• 2007Psychology as the Science of Self-Reports and Finger Movements: Whatever Happened to Actual Behavior?1,618 cited
• 1981The altruistic personality and the self-report altruism scale1,051 cited
• 1995Sustained helping without obligation: Motivation, longevity of service, and perceived attitude change among AIDS volunteers.1,042 cited
• 2006Virtual Community Attraction: Why People Hang Out Online918 cited
• 2002Dispositional and Organizational Influences on Sustained Volunteerism: An Interactionist Perspective894 cited
• 2001Membership Size, Communication Activity, and Sustainability: A Resource-Based Model of Online Social Structures843 cited
• 1989Statistical procedures and the justification of knowledge in psychological science.785 cited
• 1992Statistical procedures and the justification of knowledge in psychological science.652 cited
• 2007What motivates Wikipedians?593 cited
• 2005Using Social Psychology to Motivate Contributions to Online Communities501 cited
• 2008Volunteerism: Social Issues Perspectives and Social Policy Implications