State of the blogging world 2012 (INFOGRAPHIC) | Media Techniques |
In 2012 blogging has evolved into major publishing businesses such as Huffington Post that was sold recently for over $300 million.

It is also used by companies to display their thought leadership and expertise. Blogs are now considered an important part of a companies participation online and no longer the preserve of  the private personal blogger.
Via Ilkka Olander