A recent article on Poynteronline talked about a new model for citizen journalism. A media company in Boston, Massachussetts is tightly blending professional journalism with contributions from citizens, instead of separating the two. Apparently this 'tight integration of citizen content with professionally produced journalism' is the better way to go to produce the best information.
The melding of professional and amateur collaboration could be a success, but I don't think it's the way many news outlets will head. I think it could definately work for some markets, but maybe not for all.