Blogging can be a great marketing tool for most companies- whether big, medium or small. It also saved a lot of time and money for the company for spreading their messages and announcement. I guess the best example is Google. Google has a number of blogs and they are very useful for both the company itself and to the clients. For example, I am an Internet publisher and maintain some blogs and I use Adsense. I check the Adsense Blog on a regular basis and it helps me to get updated with this product. Users can comment and often Google Employees response to the comments. Others can see the comments and get the necessary information without repeating the same question again.

I found an entry with the title: 101 Corporate Blogging written by Daniel Bierfeldt. If you have some time then you should read it. It surely contain some useful information about corporate blogging.