When it comes to the debate over which is more effective--email marketing or social media marketing--Tyler Garns refuses to pick a winner.  Weighing in at Small Business Trends, Garns, Vice President of Marketing for Infusionsoft, argues that both still matter.  But it depends on your target, and your intent. 

For example,

If your target is under 34 years old, you’re likely to be successful using social media.  If your target is under 20 years old, you’ll probably need to reach them through social media almost exclusively.

If your target is a business, email will likely get you results faster.  If your target is a consumer, you’ll get better results through a social campaign where your target sees others singing your praises.

With regard to intent, Garns writes,

If you’re trying to sell directly, social media probably isn’t the place for you.  Email can work better.

If you’re trying to build a long-term relationship, start with social media (but the relationship may move to email).

Read Social Marketing vs. Email Marketing: Is It War? here.