ACM Special Blogging Edition

The current edition (Volume 47, Issue 12) of ACM's "Communications of the ACM" features a special issue called "The Blogosphere". It features five main articles about blogging, ranging from the "Structure of Evolution of Blogspace" to semantic blogging, from well known authors from the field like Bonnie Nardi, Diane Schiano and Rebecca Blood. It's downloadable from the ACM digital library.