Why? Perhaps a "New York Times blog" belies the original spirit of the blog as a unique, individual voice. As independent blogger Althouse says:
"I have long believed in blogging as a format for independent, individualized personal expression.
You've got to be the blog, not regard it as a pesky Other, always whining for more."
I agree. Aggregated, group-authored blog sites like Huffington Post and BoingBoing undermine the original spirit of what blogging was supposed to be about.
Some enterprises--like agriculture and automobile manufacturing--do benefit from economies of scale. A blog, however, generally becomes staler as it becomes more group-authored and"corporate".