Lilia Efimova, who herself has written some really fascinating studies of blogging, has collected papers from Computational Approaches to Analysing Weblogs and the 3rd Annual Workshop on the Weblogging Ecosystem. There are some really interesting studies in there, including Discovery of Blog Communities Based on Mutual Awareness and Browsing System for Weblog Articles based on Automated Folksonomy. If you’re interested in exploring the more analytical side of blogging and community-formation, her blog is definitely an interesting one to read.