Online social networks analysis is a potential research direction to investigate the structures and associations of social networks, like analyses of centrality, density, centrality etc. in social network framework. Due to multifaceted dimensions of client server based web technologies, new medium of linking people has emerged via social networks for collaboration in several on-line communities. Social networking sites are basically a shift between the public and private information. Now-a-days 1.5 billion people across the world have their profiles in online social networking sites. WWW has become the single largest source of information since online social networking sites.