Citizen journalism

Something I thought that has become apparent from other group's blogs is the technological advances and their impact on dumbing down. All this citizen journalism means people are creating the news they want for themselves and probably hoping their friends will like it too. So people are still catering for an audience it's just that the audience, like we discussed, is fragmenting. So how do we stop that? If that's one of the causes of dumbing down do we need to make news sources less available? Would preventing people from getting their news from different places stop fragmentation or would it just make people switch off? And if we allow citizen journalism to continue and the technological advances that go alongside are we just letting our audiences get dumber or are we just giving them get what they want?