First arrived the fax. And then came email. Now it’s social media and social networks that are hot. CataVino is a small consultancy based in Spain that helps wineries to understand how better to work with the internet, social networks included: https://catavinomarketing.com/. Catavino was founded by two Americans who have settled in Spain. They also write a blog on Spanish and Portuguese wines: https://www.catavino.net. And if you really do want to get to grips with social networks (you should!) then you can read their introduction to it: https://catavinomarketing.com/plugging-into-social-media-for-wineries/
