Alison Gow

Oh god. We have entered into the "what is a citizen journalist" black hole. Someone wake me up in 10 years when we won't care anymore.
— ilicco elia (@ilicco) March 7, 2012

The question of who is a journalist comes back to what is journalism. 
Defining these two aspects needs to examine the fundamental principles of the industry, the skill and the individual. It is far more than platform v platform and is probably the definitive response to Are Bloggers Journalists?
It's a cyclical question that looks like this:

How do you identify someone who is a Journalist?

* From employment? (what about the freelance/unemployed who worked in media)

* From education? (Journalists who find citizen journalism threatening are focusing on the lack of education. The type of education that people have access to can also be a class issue)

* From outputs? (what are the outputs? Is a film reviewer a journalist? Eg. I believe my blog contains writing about journalism rather than journalism itself. But as my posts contain information I've investigated, or data I've interrogated others might define that as journalism)

* From self-identification or association with a body Eg. The NUJ? (In China, journalists have to be registered. People writing about their communities and local news are not termed journalists in any way).

So, journalism is not a profession but most journalists would say it is. Journalism also creates journalism in its own image .