Technorati, the most recognized review service for blogs and the blogosphere, has published its yearly State of the Blogosphere report 2009. The report in this year has a focus on professional blogging and monetization. Furthermore microblogging is an issue and the impact of blog publishing to events.
By the way, Technorati added some new features lately, while doing an update of the site. TechCrunch has a review about this update pointing to improved top 100 blog lists, update of the search function and a new feature enabling bloggers to post news directly. Here is the official Technorati blog post about the update.