Even though the social websites companies offer many services to the user, there are also many concerns. Privacy and security are the major concerns while accessing these sites. The present paper has empirically investigated two objectives: first, to study the influence of social networking sites on student’s attitude towards purchase, secondly to develop a model framework for students regarding factors effecting social networking sites and their attitude towards purchase. The study is based on a data collected from a sample of 200 respondents from different colleges of cuddalore district and used factor analysis and discriminant analysis to attain the above said objectives of the study. The results of factor analysis reveal six factors named as: threat to a system, customer care, information sharing, social media/traditional advertising and lastly environmental schemes. Respondents feel that threat to a system makes respondent uncomfortable while using online information and utmost care has to be taken to make them comfortable. The study also reveals the discriminant results, further it can be concluded the students are satisfied with customer care, schemes followed by awareness and information sharing.