If answer doesn't come easily you can look for in the last edition of "The corporate blogging book" by Debbie Weil. The phenomenom is built around 3 things:

Scale: When Technorati arrived in 2002 it counted just under 13.000 blogs. In early 2005 a Gallup poll had found that 7% of USA Internet users said they were 'very familiar' with blogs although 62 percent didn't know what blogs were.In 2009 Blog Pulse tracked 126 million blogs on the Internet.

Speed: Telling a story as you see and... Continuar leyendo