A stupid non-news item that in the real world isn't that important but some blogger finds it and soon everyone is talking (and blogging) about it.
They misspelled "California" on my high school diploma. I fixed them and made blogfodder out of it. Now the whole web is talking about how stupid that printing company is.
Any subject that is blogged about, no matter how trivial, whether it be gossip, opinions, or mundane information, just for the pleasure of seeing one's words in print.
"He writes on and on about his day as if he had something important to say, when in reality, it's all justblogfodder."