Yes, email list are still popular. In 2012, 91 percent of consumers reported checked their email everyday, according to a survey by Exact Target, now part of Salesforce. Furthermore, it found that email is the preferred channel for customers.
What does this have to do with social media?
Since email can be a major asset in a marketing campaign, try to gain more email subscribers. Provide a sign-up form on your website or on Facebook through one of many apps, offer incentives for customers to join an email subscription list or run a contest.