The blog section on your website (may also be called the news section) is an often misused and misjudged aspect of your site. Many businesses are not using their blog to their best and are missing out on what it can do for their site!
The first thing your blog can do, when used regularly, is offer you a chance to speak to your audience in a more free and easy way. You can write about anything you want, giving a good opportunity to demonstrate your knowledge about your products or industry. You can offer advice, demonstrate how your products work and more!
Another great benefit of using the blog is that is sends signals to search engines that your site is active.