"Meanwhile, the disruptors, once they establish themselves at the market’s low end, move into the space previously held by the incumbents by producing cheaper, personalized content. It is not until the disruption is in its final stages that it erodes the position of the incumbents. This is the definition of the innovators’ dilemma."
Aggregation is not bad. Journalists filter the news -- if someone else does a better job of filtering, then naturally the audience will turn to them.