As always, marketing strategy starts at the top with product, distribution, price, promotion, customers and competition. A successful promotional strategy is based on positioning, messaging and branding, as applied to advertising, PR, personal selling and sales promotions. Then, you need to understand these components before you choose the communications vehicles and know what to say to compel visitors to take action.

It's difficult to build awareness with social media alone, depending on the product or service of course. You may want to try social media as part of a broader PR campaign to drive people to a specific landing page at your website, with the call to action to provide an email. Be sure to give a good reason why they should in relation to your offering's ability to fill their need competitively.