the roles of media

Watchdog

http://www.pbs.org/newshour/bb/white_house/june96/files_hearings_6-26.html

This article is a example of watchdog because its saying something about the government.

Agenda setter

http://poq.oxfordjournals.org/content/36/2/176.abs...

This article is a example of agenda setter because it talks about setting aagendas in the campaign.

Biased

http://fair.org/take-action-now/media-activism-kit...

This article is an example of biased because it talks about the sources of media and news media.