I have many blogs, because I started with blogging first and when I felt that I could integrate them all together on a single website, then I had a website for me. And now I have about three websites and six blogs. The three of the blogs are connected to my websites, while the other threes are for my personal use, such as writing about travel, creative writing and freelancing, and women issues and related affairs.
Yes. I think connecting your websites to some blogs is a good thing to do. I have been doing these websites to promote mine and well as other business's products and services. In the blogs, people can talk about them and have a good interaction with the particular representatives of the businesses to make suggestions and complaints (if any).
This has proven useful as more customers are taking active part for suggestions. Customers are feeling that they are not being left out or being overlooked and they have a say in the products and services they are purchasing.