Useful articles

http://www.techsoup.org/learningcenter/internet/archives/page9157.cfm
http://en.wikipedia.org/wiki/Citizen_journalism
http://www.guardian.co.uk/media/pda/2009/nov/05/digital-media-twitter-personalised-newspaper-twittertimes
http://www.guardian.co.uk/media/pda/2009/sep/17/digital-media-future-of-journalism
http://en.wikipedia.org/wiki/Online_journalism
http://www.nowpublic.com/opinions/impact-online-journalism
http://www.bbc.co.uk/blogs/theeditors/2008/01/value_of_citizen_journalism.html