More interesting findings from Technorati’s “state of the blogosphere” report. This installment focuses on “posting volume,” or how active the active 55% of the world’s 14.4 million blogs really is. The study shows a clear and steady increase in the average posting rate across the blogosphere. The graph below shows how volume has spiked in response to certain events, from Howard Dean’s infamous scream following the Iowa primary to the July 7 London bombings.