Yes. Corporate blogs can be good at word-of-mouth marketing.
There are lots of corporate blogs in the online world. However, blogs that are spreading like wild fire or strong in word-of mouth have 2 key component:
1. Value
If the corporate blog is creating values that their market want and desire, people will start talking about it and start spreading the word. For example: If there’s real estate agency who start a blog that teach people how to buy good properties and tips to save thousands in their expenses, do you think people will talk about their blog.
Do you think their blog will be spreading around people’s ears especially those who want to buy real estates?
2. Uniqueness
If you are providing tips and knowledge on your blog which are already too popular or your competitors are already providing, do you think your blog is going to be popular?
Since that value can be acquired from anywhere, there’s no need to go to your blog. If you want word-of-mouth marketing work well for you, make sure you create unique value. Other books and seminar are not even talking about it. Only you know how to use it and know how to share it.