Blogs are great tools for marketing communication and product branding. If you can utilize the full potential of a blog, it can really work wonders for your business apart from engaging the target market. It will definitely give you a competitive edge over others.
From the SEO perspective, it will also help you get more visitors, increase the scope for incoming links and definitely improve your search engine ranking. Especially for ecommerce websites, where there is not much scope for on-page content, blogs can offer the best possible solution.
It takes time and experience to develop and maintain a blog. But, most of the website owners do not have enough time, manpower or experience to actually utilize the full potential of a blog.