(USAToday) - Winemakers embrace tech with live video chats where they discuss the nuances of their latest vintages. QR codes on wine bottles also provide food pairing ideas. Live video chats where winemakers discuss the nuances of their latest vintages. QR codes on wine bottles that provide food pairing ideas with a scan of a smartphone. Winery-hosted Twitter tastings where participants try wine at home and then discuss it virtually in tweets. The Old World trade of winemaking is experimenting with social media, iPhone apps, QR codes and other digital advances to bolster sales and solidify customer relations. For tiny wineries such as Cartograph Wines in Healdsburg, Calif., sites such as Tw