I like Ben Werdmüller’s post on the same Kottke article:

http://werd.io/2013/the-blog-might-be-dying-but-the-webs-about-to

“The article isn’t dying; you can think of the blog, or the stream, or the feed, as the container that the article sits in.”

“Not only can content be personalized, but the form of the content can be personalized. Facebook might agonize over the algorithm that decides which posts are surfaced, but in the future we can each have our own algorithms. Form and content will be separated.”