Content Marketing is about generating information that your potential and current customers are in need to know in order to attract them and create a connexion.

This is a "recipe" for Content Marketing based on a blog:

1. Write periodically on your blog, create an article or news that could be of interest to your potential and current customers. Try not to make it more than a page long so they read it rapidly.
2. Content 3-1 in Facebook. Schedule 3 posts related to that article in Facebook and one more 100% commercial post. See how to set up automatic posts in Facebook.
3. Content 3-1 in Twitter. Schedule 3 posts related to that article in Twitter and one more 100% commercial post.
4. Newsletter. Send e-mail periodically to your potential customers, once a month is a good window frame so you don't saturate them. You can use the title of the article for the e-mail's subject. See options for free Email Marketing.

You will not only create a connexion with potential and current customers, but you will improve your website's position in Google's search engine.