Email has become such a popular marketing tool for businesses partly because it forces the user to take some kind of action; an email will sit in the inbox until it’s read, deleted, or archived. Email marketing can help you build a relationship with your audience while also driving traffic to your blog, social media, or anywhere else you’d like folks to visit. You can even segment your emails and target users by demographic so you’re only sending people the messages they want to see most.
Email marketing also allows you to run A/B tests of a subject line or call to action to identify the best performing message by using email marketing software that can also be configured to easily send out emails. Check out Mailchimp's email templates to see more of what you can do with email marketing.