It comes from Gabriel Sherman at New York Magazine:
Since launching in April, the Upshot has established itself as an irresistible read and a significant source of traffic, generating four of the top-20 most-viewed stories on nytimes.com in 2014. In October, it was responsible for 5 percent of the Times’ total site visitors. Impressive numbers for a start-up—and the first real evidence that the seeds of a start-up culture at the Times are taking root.
