How Do Businesses Use The Blog

Businesses uses blogs to contact/connect with customers, and also with employees. To let them know whats going on. Also to give some information. Some would post a video speaking at events. This way customers can get to know them better. They would ask customers for their opinions, and they would listen to it, to make their business better. Some would reward the readers by giving them discounts. That's why and how businesses uses a blog.