Are Any Companies Still Thriving on a Blog-Heavy Content Model?

Every few months a new piece of content crosses your feed declaring that blogging is dead. SEO is finished. Long-form content is obsolete. AI has made the blog irrelevant. And yet some of the most valuable, fastest-growing, and most-cited companies on the internet still run blog-heavy content models as their primary engine for traffic, leads, and authority — not as a legacy strategy they haven't gotten around to updating, but as a deliberate, compounding competitive advantage they continue to invest in aggressively. The question isn't whether blogging still works. The evidence on that is unambiguous. The more interesting question is what kind of blogging works, for whom, and under what conditions.