Technorati, blog portal and blogger community, has released its yearly study about the state of the blogosphere. The study this year especially examined the segmentation of bloggers, their motivation and activity.
In general the blogosphere is continually changing, which beside private usage is marked by professionalization. Especially the latter should be the reason for increased activities despite of the social media boom. For more details visit the website of the State of the Blogosphere 2011.