When it comes to successful marketing strategies, did you know email marketing consistently ranks as one of the best tactics tudies show email has a median ROI of 122 percent; this is more than four times higher than other top strategies, including social media. In addition, Hub pot reports 86 percent of consumers want to receive emails from companies they do business with at least once a month. As you can tell, research backs up claims that email marketing is worth the investment. In addition to the hard numbers, there are additional reasons this tactic plays an important role in your overall content marketing strategy.