The magazine, which was started in 1982, has a storied history, but its print base eroded over the years as its core brand of journalism — news you can use while shopping for computers — moved online. It cut back from bi-weekly to monthly earlier this year. PCMag, which literally invented the idea of comparative hardware and software reviews, at one time during the ’80s averaged about 400 pages an issue, with some issues breaking the 500- and even the 600-page marks, according to this Wikipedia history.
John Gruber of Daring Fireball says this is likely an ever more frequent transition as the recession deepens. Both U.S. News & World Report and the Christian Science Monitor have announced plans in recent weeks to end/reduce print editions.
Edit – 11/20/08 – John Gruber’s name was misspelled in the original post.