Social capital is not a new concept. It can be defined as “the extent, nature and quality of social ties that individuals or communities can mobilize in the conduct of their affairs”. (Zinnbauer, 2007:9). There are two complementary uses of social capital: social contact and civic engagement. Network capital refers to the relationships an individual has with their friends, relatives, neighbors and co-workers; and participatory capital refers to engagement in politics, work, and volunteer activities within the individual's community (Wellman and Quan-Haase, 2001). The Internet can be understood as a universal system of networks serving millions of people every day. This essay will look at different theorists and their way of explaining social capital and will also evaluate how an individual's social capital can be increased and improved through the Internet. Social capital has a much broader understanding than described so far. Many different theorists define social capital in different ways. There are three main ones, one of them is Coleman. Coleman (1988) defines social capital as "Resources accumulated through relationships between people". He explains it as something that is composed of various different entities, so it can be understood as a function. It is seen as something productive and as a way to satisfy specific needs and desires that would be impossible to achieve without it. He believes that, compared to other types of capital, social capital is an inseparable part in the structure of relationships between and among individuals and among (Coleman, 1988). He also argues that social capital appears because of the change in the relationship an individual has with another who can provide something… half of the article… capital", American Journal of Sociology, 94(), pp 95-120 .Josh Pasek, Eian More and Daniel Romer (2009) "Online social networking meets offline social capital", Making the Social Internet?, 6(3), pp. Harlan, Bob Bolin, Edward J. Hackett, Diane Hope, Andrew Kirby, Amy Nelson, Tom R. Rex, and Shaphard Wolf (2004) “Understanding the Relationship Between Social Capital and Civic Action,” Bonding and Bridging, 24(), pp 64-77.Martti Siisiäinen (2000) Two concepts of social capital: Bourdieu vs. Putnam, University of Jyväskylä: Department of Science social and philosophy .Pierre Bourdieu (1986) The Forms of Capital, New York, Greenwood: J. Richardson (Ed.) Handbook of theory and research for the sociology of education. Robert Putnam (2000) Bowling Alone: ​​The Collapse and Revival of American Community, New York: Simon & Schuster.