Once you have high-quality lists and are able to personalize campaigns, you should begin to think about email automation. Automation allows you to set up particular emails based on timing and triggers that send automatically based on subscriber behavior. For example, you might set up an automated welcome email after a subscriber signs up for your list.
Sponsor a video contest in which customers create a one-minute video about why they like your business, products or services. Ask them to send the videos to you and post them to your Facebook page. Invite visitors to vote on which video should win a cash or merchandise prize. Include an email opt-in on your Facebook page. Be sure to follow Facebook’s rules regarding contests.
For effective and actionable results, you should do A/B tests, which test two (or more) different approaches. For example, you could send half of your list one subject line, and an alternate subject line to the other half. You could also A/B test the two approaches with a small subset of your list, then send the winning headline to the rest of the list.