The document summarizes key findings from an analysis of over 9 million wine sales transactions from 1200+ winery websites totaling $1.79 billion from 2013-2015. It finds that the top 20% of wineries accounted for 89% of total sales. The top 20% had email lists 4x larger, average order values $100 higher, and shipping costs 50% lower than the bottom 80% of wineries. The document also examines strategies used by 46 wineries that doubled their e-commerce sales in 2015, including focusing on the user experience, using offline channels to drive online sales, and implementing loyalty programs.