I think what he was refering to is the ability to write content on the fly, so to speak, with a blog.
No need for html or templates,just type and click. Here is a free description on how to create a blog with Blogger

I do think business blogs are a good tool in your internet marketing arsenal. But one cannot rely on this alone.

They are particularly good for building an image or reputation of yourself with your potential customers.

There are a lot of questions and discussions about blogging. For example what the best blogging platform is, and frequency of posts, how to generate good content, where to syndicate your content and so forth.

Yes, starting and maintaining a thread about blogging might be a good idea after all