http://www.businessblogconsulting.com/
Subject-based website
A site devoted to demonstrating how effective blogs can be for communicating with customers and marketing to new customer prospects. Lots of examples of business and corporate blogs, as well as resources to help us understand more about the business blogging.

http://www.advancedbusinessblogging.com/
Personal website
A website by Deborah and John-Paul Micek where they teach people how to use New Media tools (e.g. business blogging, vlogging) to transform their marketing, sales and management

http://blogbusinessworld.blogspot.com/
Subject-based website
A blog by Wayne Hurlbert where he showcase the different blogs in business, marketing, public relations, and SEO search engine optimization for successful entrepreneurs

http://www.asia.socialtext.net/bizblogs/index.cgi#
Organizational website
This is a directory of Fortune 500 companies that have business blogs, defined as: active public blogs by company employees about the company and/or its products.

http://www.smallbusinessbrief.com/forum/index.php?
Forum
Community of over 7,000 small business folks from around the world who support and encourage each other as we grow our businesses. Includes topic like blogs and blogging.

The above are the 4 different types of websites, namely personal, subject-based and organisational. The 5th one is a forum which i think will be helpful for the topic im doing on. I used Google to find the websites using keywords such as business blogging and corporate blogging. Both yield me relevant results.

Blogging has a big impact on the businesses all around the world today and i think that the impact is just going to get bigger as more and more people are IT savvy and blogging is getting more common.