Email Marketing VS Social Media Marketing
If we talk about conversions (that is converting your fans into customers), then email marketing always has a higher conversion rate than social media.
It is because, in an email, you do not have any distractions like you have in social media. The only thing that your follower see on his screen is your message.
That is why I always recommend my clients to start with email marketing before they think of social media marketing.
Not only for selling, even if you are using email marketing to keep your readers updated about new articles on your blog or website.
Chances are more that they will click on the link that they receive in their email rather than clicking on the link that they see in their Facebook news feed.