This document outlines 3 key email marketing strategies - retargeting, mobile marketing, and getting social - to generate more online store revenue. It discusses retargeting customers who don't open or click emails, designing emails for mobile, and using social media interactions to drive email engagement. Retargeting abandoned carts and non-responsive customers is highlighted as an easy win. Mobile optimization, like sizing buttons and images for small screens, is also emphasized as mobile usage continues to rise.