dear
Though im not much of a senior to help you out by giving a credible suggestion but il still try.

Try the website :
journalism.co.uk for latest happenings in international arena...

For a more specific/relevent search for articles, you can always search on google for the social impacts of journalism through print and electronic media as well as the current trend with reference to pakistan.the bias and prejudice of it.how its forming public opinion.'corruption' through journalism.sold out journalists.danger to journalists life esp cz of terrorism and security situation etc etc
U can search in same way for positive effects of it as well....

Hope my mediocre post/suggestion is of any help to you,rest the seniors can help u better.
Goodluck

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My Lord! Vouchsafe me wisdom and unite me to the righteous [The Poets-26 Verse 83]