Even in the realm of state and local government, there's a blog for everyone and every subject. (Like this one on court performance measures, which I found while writing a story on that topic a few months ago.)
I just came across a new one, Squandered Heritage, dedicated to housing preservation in post-Katrina New Orleans. The blog catalogs specific properties and offers information on historic districts and preservation grants.
By the way, we list several blogs with state and local government interest in the column on the left. We're always interested in hearing about others. Email any tips to email@example.com.
Photo from Squandered Heritage, also on Flickr