Nowadays I mostly see blogposts containing ads for upcoming races (which I don't mind as long as the running blogs don't end up like the back pages of a Runner's World magazine wherein race ads are lumped next to each other ---or like your Sunday newspaper classified ads section. Haha!). I guess it's an additional channel that race organizers have found to advertise their races to the public. The blog wins too, in the form of increased visitors.
Unfortunately, I am left wanting, hoping to read more of the running experience itself.
Get out of this writer's block and start run-blogging again, ok? :)