As you say, it is a good idea for companies to develop corporate blogs. However, your findings do not surprise me, to truly make the greatest use of blogging, companies must get out into the blogosphere, and not simply rely on readers coming to their blog.

If the world will not come to you, you must go out into the world.

With respect, I beg to differ with you in relation to your views about commenting. One line comments are adequate in my opinion, provided they add something useful to the conversation. Comments such as ‘I agree,’ are not helpful. Such comments are often used by spammers or people who simply wish to create links back to their own blog.

Proper blogging etiquette, in my opinion, involves carefully reading the post and providing a thoughtful comment which is relevant to the topic of the post.

Short comments are OK, but they must be on topic, relevant and interesting.

Cheers

Andrew