Digital marketing skills are incredibly valuable to modern businesses. Whether you are operating as an entrepreneur or for an organization, understanding how to promote a business online can provide tangible results. The online world moves quickly, though, so knowledge from a few years ago won’t necessarily still be relevant. It is important to upgrade your marketing expertise so that you can be useful for your own or other companies. So what areas should you focus on to become a skilled digital marketer?   SEO  SEO continues to change, so your knowledge can become outdated. Elements like keywords, backlinks, and content...