I’ve picked out a few interesting facts.

• 133 million blogs have been indexed by Technorati since 2002
• 76,000 blogs have a Technorati rating of 50 or higher
• 41 per cent of bloggers use Twitter
• Technology is the 2nd most popular topic for bloggers
• Corporate blogs make up 12 per cent of all blogs
• Professional blogs make up 46 per cent of all blogs
• 50 per cent of bloggers are aged between 18 and 34
• 44 per cent of bloggers are parents
• 42 per cent of bloggers spend 3-10 hours blogging per week
• Only 15 per cent of bloggers spend less than an hour blogging per week
• ‘Blog’ is the 5th most popular tag
• ‘Technology’ is the 11th most popular tag
• 83 per cent of blogs are listed on Technorati
• Just 4 per cent of bloggers pay to advertise their blog
• 46 per cent of blogs don’t feature any advertising
• Bloggers spend twice as much time online as U.S. adults 18-49,
• 82 per cent of bloggers post brand and product reviews
• 89 per cent of bloggers post about brands that they love or hate
• 37% of bloggers have been quoted in traditional media based on a blog post
• Half of bloggers believe that blogs will be a primary source for news and entertainment in the next five years
• 1 in 5 five bloggers don’t think that newspapers will survive the next ten years