After forums and before Facebook, blogs were the ideal tool for customer communication. Easier to maintain than forums, better to control than Facebook. A weblog should actually be attached to every slightly larger website. On the one hand, you can get information about yourself and the company, introduce new products, rate or criticize products and so on. On the other hand, you can also seek a conversation with the customer. Advertise potential customers. Promote yourself, for example by answering difficult questions on the topic. That shows competence, that creates trust. As in the case of Manfred Walter with his website on the subject of PkV. Here visitors have asked hundreds of questions on the blog over the years, all of which Manfred has answered. And that, although some questions involved considerable research effort. But that's the only way it works with the neighbors / internet.