Here’s a thought I know will keep up all night:
“Digital platforms — blogs, most explicitly, but also digital journalism vehicles as a collective — have introduced a more iterative form of storytelling that subtly challenges print and broadcast assumptions of conceptual confinement. For journalists like Josh Marshall and Glenn Greenwald and other modern-day muckrakers, to be a journalist is also, implicitly, to be an advocate. And, so, focusing on the follow-up aspect of journalism — not just starting fires, but keeping them alive — has been foundational to their work. Increasingly, in the digital media economy, good journalists find stories. The better ones keep them going. The best keep them burning.” Nieman Journalism Lab.
This could be the best rationale for blogging — not so much a superficial need to self-expression, but rather a need to keep the story going.