You'll find our Media Factsheet archive here with a helpful guide as the first link.
Looking over them, the following will be useful for the exam:
050 'We-Media' and Democracy
053 Journalism in the New Media Age: The effect of online technology
071 Citizen Journalism: from Producer to Audience
076 News Values
088 The Impact of New Media on Politics
092 Globalisation and the Media
104 Audiences in the Digital Age
131 Social Media and the News Agenda
134 Press, Prominence and Persuasion – A Case Study in News and Social Media
There are plenty for you to look through for your Critical Investigation too - horror film, gender, post-9/11 Hollywood and more. One that all of you could use:
060 How to Write Academic Essays
Remember: these resources are all for you - the more you use them, the better you will do!