Long form content actually does very well online when it is an interesting subject and well-written (and, increasingly, creatively designed).
For example: this article has been voted to the front page of HN, which is more than thousands of terse, AP-style inverted-pyramid news articles can say.
For example: this article has been voted to the front page of HN, which is more than thousands of terse, AP-style inverted-pyramid news articles can say.