Blogging stats by Technorati

TechCrunch published an interesting article about the state of the blogosphere, which is based on a survey made by Penn, Schoen and Berland from Technorati.

Briefly some main points: bloggers are divided in two groups, hobbyist 72 % and professionals 28 %. Hobbyist blog for fun and they don't make money on blogging whereas professional get more or less income from blogging. When hobbyists blogs are about personal subjects, professionals primarly only blog about the topic of their blogs and personal musings are usually related to their topics.

There are three different types of professional bloggers: part-timers 15 %, corporate bloggers 4 % and self-employed bloggers 9 %. From part-timer bloggers 75 % blog to share their expertise and 72 % to attract new clients for their business. From professional self-employed bloggers 70 % own a company and blog about their business and 22 % say that their blog is their business. Corporate professional bloggers blog full-time for a company and 70 % of them blog to share expertise and 53 % blog to attract new clients for the business they work for. 17 % of professional bloggers say that blogging is their primary source of income.

Interesting, but not suprising numbers. Blogging has grown rapidly and so is commercialism in blogs. Money is nowadays strongly related to blogging as an income. In 2008, 28 % of professional bloggers monetized their blogs from display ads. In 2009, the number is 40 %. Bloggers also use other interactive services to spread the word and get traffic to their sites. For example, 73 % of all the bloggers use Twitter to promote their blog. In 2008 the number was only 41 %.

Are you a hobbyist or a professional blogger? What different ways you use to promote your blog?