Dennis Forbes with a most excellent rant. Part pro-bloggin, part anti-blogging, part anti-Scoble filled with good stuff like:

"If you look at his adoring community, and follow some of the backlinks, you discover a large, incestuous network of bloggers that are blogging about blogging, and linking to each others blog entries about blog entries about blog entries that talk about blogging about blogging on blogging with blogging."

http://www.yafla.com/dforbes/categories/softwareDevelopment/2005/11/30.html#a203

BTW, he also covers a bunch of great software dev stuff in his other posts so at the risk of being incestuous I'd recommend you subscribe ;-)