There were 1,006 new magazines started last year according to Mr. Magazine Samir Husni. That is a rate 2.75 a day. The NY Post article breaks it down further
On a category basis, here's the top 10 list for 2004. Crafts, 125; food, 104; metro/regional, 83; home, 59; sports, 57; automotive, 41; fashion/beauty, 34; special interest, 32; media personalities, 31; black/ethnic: 27
If one takes the figure of 6 new blogs a minute there are 8,640 new blogs a day and 3,153,600 a year though that figure is a variable far from my meager math talents. Assuming that these magazines have websites some with blogs, some if they are smart actually built as blogs or multiple blogs, that is still a very interesting ratio. More content with less damage to the environment.