Mass communication refers to communication activities of various media. There are several theories related to mass communication, including agenda setting theory, cultivation theory, and media dependency theory. Most scholars believe media effects are cumulative over time, though individuals have some control over effects and can choose which media to use. Media also help socialize children and may influence political involvement. Social networking services are a form of mass communication that enable connection across borders based on shared interests and encourage reciprocal relationships. However, mass communication can also manipulate audiences and tend toward biased perspectives.

2. The idea of a theory lies at the heart of any scholarly process, and while those in the social sciences tend to adopt the tests of a good theory from natural sciences, many who study communication adhere to an idea of theory that is akin to that found in other academic fields.

3. There are 6 yardsticks to evaluating theory; Theoretical scope: Appropriateness: Heuristic value: Validity: Parsimony: Openness:

5. There is value in being able to use theories as “lenses” through which one can understand the world together with other scholars.

6. There are several theories Related to mass communication such as:Agenda setting theory: Cultivation theory: Cultural imperialism theory: Diffusion of innovation theory: Media dependency theory: Media equation theory: Spiral of silence theory: Technological determinism theory: Functional approach to mass communication theory: Human action theory:

8. Individuals choose some mass media over others for the satisfactions they anticipate.

9. Individuals have substantial control over mass media effects on them.

10. Mass media have a significant role helping children learn society’s expectations of them.

11. Scholars differ on whether media-depicted violence triggers aggressive behavior.

12. The mass media set the agenda for what people are interested in and talk about.

14. A social network service essentially consists of a representation of each user (often a profile), his/her social links, and a variety of additional services.

15. Most social network services are web based and provide means for users to interact over the internet, such as e-mail and instant message.

16. SNS and mass communication shared some particular phenomenon such as:

17. SNS makes it possible to connect people who share interests and activities across political, economic, and geographic borders.

18. SNS creates a gift economy, reciprocal relationship, altruism and encouraged through cooperation which is applicable to mass communication.

20. Some criticism does get to the public, of course, but most of it is corrupted by the same forces that have turned the rest of the media into a source of manipulation.

22. Jensen J (1990). Redeeming Modernity: American Media Criticism as Social Criticism, Newbury Park, California Sage.

23. McQuail D (1987). Mass Communication Theory: An introduction, London; Newbury Park, California, Sage.

24. Paul M. Shaver, the electronic communication of the journal, Indiana University South Bend Moira Burke and Cameron

25. Marlow and Thomas Lento; Feed Me: Motivating Newcomer Contribution in Social Network Sites, Carnegie Mellon University

26. …..www.google.com