Authority is a slippery thing, and its nature is going through yet another permutation in literary life. There are plenty of young, gifted critics writing fiercely and argumentatively in relatively obscure Web publications. But they are keenly aware that, along with the target of their scrutiny, the source of their own authority is also an object of examination. Macdonald simply took for granted the fact that membership in a community conferred on him a certain accredited brilliance. This is what, for me, makes reading him now an incomplete experience, because the group that certified his judgments has disappeared. Literary criticism on the Web, on the other hand, draws whatever authority it has by renouncing any claims to authority. The Web critic relies on his or her readers for attentiveness and approval. A social style is gradually replacing an idiosyncratic one...
Applying old standards to a time when everyone is throwing everything they can at the proverbial wall to see what sticks is like printing out a tweet, putting it in an envelope, and sending it to someone through the mail. The very fact that reading and writing are in jeopardy, or simply evolving, means that to try to put the brakes of old criteria on a changing situation is going to be either obstructive or boring. In our critical age of almost manic invention, the most effective criticism of what, in the critic’s eyes, is a bad book would be to simply ignore it, while nudging better books toward the fulfillment of what the critic understands to be each book’s particular creative aim. The very largeness and diversity of present-day audiences make less and less relevant the type of review that never gets beyond the book under review. It’s the critic’s job nowadays not just to try to survive and flourish amid ever-shifting modes of cognition and transmission, but to define new standards that might offer clarity and illumination amid all the change. Quite simply, the book review is dead, and the long review essay centered on a specific book or books is staggering toward extinction.
-- Lee Siegel, "Burying the Hatchet," The New Yorker/Page-Turner, September 26, 2013