The State of the Blogosphere Report 2008 offers some really great stats that are important to any business or professional using the Internet for business.
Here are some of the highest rated topics covered on blogs:
Some interesting demographics on U. S. bloggers:
Age 35 to 49 37%
Employed full-time 56%
College Graduate 74%
So if you are a marketing or public relations person or someone who writes web content, these numbers are very important to you.
You can find the report at technorati.com/blogging/state-of-the-blogosphere.