techno-1Technorati is beginning its slow striptease again. Today marks the beginning of the five-day rollout of its annual State of the Blogosphere report. The company started previewing the report on Friday at the Blogworld Expo in Las Vegas.

Richard Jalichandra, chief executive of Technorati — a search engine for blogs and a host for them as well — said in his presentation on Friday that blogging continues to gain steam as a profession, particularly as traditional media journalists migrate from old media to the web.

Today’s release is about who bloggers are. Even as some bloggers become more professional, 72 percent of bloggers call themselves hobbyists. About 9 percent of bloggers are self-employed, and of that group, about 22 percent say their business is their blog. Some 10 percent of the professional bloggers say they blog more than 40 hours a week. And among professional bloggers, 40 percent say they worked in traditional media.

This year’s survey interviewed 2,900 bloggers and was conducted by research firm Penn, Schoen & Berland. The survey found that two-thirds of bloggers are male and 60 percent are 18 – 44 years old. And they’re addicted to Twitter. Some 73 percent of bloggers use Twitter, mainly to promote their blog posts. In the general population, only about 14 percent of people use Twitter. Here’s a selection of data from the survey, which will be rolling out on the Technorati site from today through Friday.

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