This study tries to provide a virtual image of the structure and design of Facenama, Cloob, Facebook and Google+ social networks. The main question in this study is which variable or variables are differ in the structure and design of social networks of Iranian and non-Iranian. Content analysis has been used in this study. Content analysis is a research method to describe the objective, systematic and quantitative manifest content of communication messages used. Overall, this study showed that most of the real images, personal pictures, lots of charm, design web format, fixed format, output format, content, text and images, colors and texture, heat and cold, and emotional attraction for color, many comments, more than 10 Comments, iconic landmarks and layering of different materials used in the structure and design of social networks.

Also, there is a significant correlation between the actual picture type, color, format, content production, layering content and comments with social networks of Iranian and non-Iranian.

The main purpose of this paper is to evaluate the compliance status of the cultural identityof the members of the social network Face book case study of Tehran University's undergraduate student majors. This paper reviews the status of student commitment to social network facebook, the facebook components and indicators of cultural identity. This paper is exploratory and the results of a survey. The subjects of this study are students of Tehran University undergraduate courses. The data collection techniques used questionnaire and structuralism theories of Anthony Giddens and Stuart Hall's Representation. The findings suggest that membership and participation in the community of single women aged 20 to 22 years compared with men in Face Book more. Sense of belonging to the Persian language، Friendship is based on values ​​and norms, Choose dress and makeup according to the values ​​and norms، respect to different cultures and nationalities Notes and Comments on Face book Students will adhere to the cultural identity of anecdote on Face book On the other hand, students who disagreements with their religious norms - National and tend to less their use of religious symbols and sayings، Interest in learning Linguistic terms Common on Face book suggest a Cultural identity is a lack of to adhere to students. Cultural identity indicates that the content of the benchmark to evaluate students on Face book, change, comparison, and selection is located.

This research suggests a methodological improvement to study social capital in online social networks. We have designed a measurement tool based on Lin's theory of social resources. It is named Social Village and can be accessed in (http://socialvillage.me). By this tool, we are getting access to profile and friendship data of users of online social networks (Facebook and Google Plus). To access this data, we ask for users’ permission by social login and we have designed a gamified and interesting social survey that helps users get an in-depth knowledge of their online life. This tool combines three structural generators for social capital data (name, position and resource generators) and it has been developed in three languages (English, French and Persian) enabling us to conduct comparative studies. Based on our results presented in this report, 412 users in sample of our study know who they are connected with in online social networks, they know their friends’ socio-economic positions and they are providing or receiving various resources through their online friendships and their level of social capital is signifacntly correlated with their activities in online social networks and some other variables that are discussed in the report.