I think in a sense it’s true that the golden age of blogging is over, but that’s a good thing. And not because of anything bad about blogging. On the contrary…
Blogging began when your choices were (roughly) to dive into the never-ending, transient conversational streams of the Internet, or create a page with such great effort that you didn’t want to go back and change it, and few could bother to create a different page in order to comment on yours. Blogs let us post whenever we had something to say, and came with commenting built in. The Net was already conversational; blogs let us make static posts — articles, home pages — conversational.
Thanks to that, we now take for granted that posts will be conversational. The golden age ended because when a rare metal is everywhere, it’s no longer rare. And in this case, that’s a great thing.
Yes, that metaphor sucks. An ecosystem is a better one. Since the Web began, we’ve been filling in the environmental niches. We now have many more ways to talk with one another. Blogs continue to be an incredibly important player in this ecosystem; thank of how rapidly knowledge and ideas have become part of our new public thanks to blogs. But the point of an ecosystem metaphor is that the goodness comes from the complexity and diversity of participants and their relations. I therefore do not mourn the passing of the golden age of any particular modality of conversation, so long as that means other modalities have joined in the happy fray.
Blogging isn’t golden! Long live blogging! :)