The question is not whether all blogs have value as journalism, but whether journalism can be done in blog form. Journalists who don't want to be known as "just bloggers" will point to a 12-year-old girl's half-grammatical rants about her teachers and schoolyard enemies on a pink explosion background and say that obviously no journalism can be associated with such as this. And there are plenty of bloggers who wish they were journalists that are doing nothing but rehashing existing reporting with limited commentary. Journalism is hard work, and being respected as a blogger is doubly hard.
Mokalus of Borg
PS - This blog is not journalism, and it's not meant to be.
PPS - Most other blogs are the same: ongoing opinion columns.