Identity is the characteristics determining who or what a person or thing is. People are not born with identities but they have identities created for them by the society they belong to. All forms of media can label certain groups with a particular identity. Without cultural, political or social differences a person cannot be given an identity. For instance, Muslim citizens (particularly in the U.K.) are given the stereotypical identity of being linked to 'terrorism', most especially through newspapers.
“A focus on Identity requires us to pay closer attention to the ways in which media and technologies are used in everyday life and their consequences for social groups” -David Buckingham
(http://www.digitalyouthnetwork.org/11-core-values/pages/41-identity)
Collective identity is an individuals sense of belonging to a group.
What is Mediation?
Mediation refers to the process where a neutral third party helps to resolve a dispute between two parties; the third party does this by negotiating an agreement between the two parties in disgareement with one another.
Silverstone (2006) sees the concept of mediation as follows:"Mediation refers to what media do, and to what we do with the media. It is a term that defines the media, both the media of mass communication (radio, television, the world wide web, but also the press) and the media of interpersonal communication (fixed and mobile telephony, e-mail, but also the letter), as actively creating a symbolic and cultural space in which meanings are created and communicated beyond the constraints of the face to face, and which is becoming increasingly significant for the conduct of public, institutional and private life. Readers, viewers and audiences are part of this process of mediation, because they continue the work of the media in the ways they respond to, extend and further communicate what they see and hear on the world’s multitude of screens and speakers."
(http://www.newinfluencer.com/mediapedia/mediation/)

"Post-colonialism" loosely designates a set of theoretical approaches which focus on the direct effects and aftermaths of colonization. It also represents an attempt at transcending the historical definition of its primary object of study toward an extension of the historic and political notion of "colonizing" to other forms of human exploitation, normalization, repression and dependency. Post-colonialism forms a composite but powerful intellectual and critical movement which renews the perception and understanding of modern history, cultural studies, literary criticism, and political economy.
A youth subculture is a minority youth culture whose distinctiveness depended largely on the social class and ethnic background of its members; often characterized by its adoption of a particular music genre.
What is Mediation?
Mediation refers to the process where a neutral third party helps to resolve a dispute between two parties; the third party does this by negotiating an agreement between the two parties in disgareement with one another.
Silverstone (2006) sees the concept of mediation as follows:"Mediation refers to what media do, and to what we do with the media. It is a term that defines the media, both the media of mass communication (radio, television, the world wide web, but also the press) and the media of interpersonal communication (fixed and mobile telephony, e-mail, but also the letter), as actively creating a symbolic and cultural space in which meanings are created and communicated beyond the constraints of the face to face, and which is becoming increasingly significant for the conduct of public, institutional and private life. Readers, viewers and audiences are part of this process of mediation, because they continue the work of the media in the ways they respond to, extend and further communicate what they see and hear on the world’s multitude of screens and speakers."
(http://www.newinfluencer.com/mediapedia/mediation/)
What is representation?
Representation refers to the construction in any medium (especially the mass media) of aspects of ‘reality’ such as people, places, objects, events, cultural identities and other abstract concepts. Such representations may be in speech or writing as well as still or moving pictures.
Representation refers to the construction in any medium (especially the mass media) of aspects of ‘reality’ such as people, places, objects, events, cultural identities and other abstract concepts. Such representations may be in speech or writing as well as still or moving pictures.

What is hegemony?
Gramsci used the term hegemony to denote the predominance of one social class over others (e.g. bourgeois hegemony). This represents not only political and economic control, but also the ability of the dominant class to project its own way of seeing the world so that those who are subordinated by it accept it as 'common sense' and 'natural'. Commentators stress that this involves willing and active consent. Common sense, suggests Geoffrey Nowell-Smith, is 'the way a subordinate class lives its subordination' (cited in Alvarado & Boyd-Barrett 1992: 51).
Colonialism the control or governing influence of a nation over a dependent country, territory, or people. Colonialism is a process whereby sovereignty over the colony is claimed by the metropole and the social structure, government, and economics of the colony are changed by colonists - people from the metropole. Colonialism is a set of unequal relationships: between the metropole and the colony, and between the colonists and the indigenous population.
"Post-colonialism" loosely designates a set of theoretical approaches which focus on the direct effects and aftermaths of colonization. It also represents an attempt at transcending the historical definition of its primary object of study toward an extension of the historic and political notion of "colonizing" to other forms of human exploitation, normalization, repression and dependency. Post-colonialism forms a composite but powerful intellectual and critical movement which renews the perception and understanding of modern history, cultural studies, literary criticism, and political economy.
A youth subculture is a minority youth culture whose distinctiveness depended largely on the social class and ethnic background of its members; often characterized by its adoption of a particular music genre.
Postmodernism is largely a reaction to the assumed certainty of scientific, or objective, efforts to explain reality. In essence, it stems from a recognition that reality is not simply mirrored in human understanding of it, but rather, is constructed as the mind tries to understand its own particular and personal reality. For this reason, postmodernism is highly skeptical of explanations which claim to be valid for all groups, cultures, traditions, or races, and instead focuses on the relative truths of each person. In the postmodern understanding, interpretation is everything; reality only comes into being through our interpretations of what the world means to us individually. Postmodernism relies on concrete experience over abstract principles, knowing always that the outcome of one's own experience will necessarily be fallible and relative, rather than certain and universal.