Grapevine variety selection is becoming an increasingly complex decision, considering potential marketability, yield, quality, environmental adaptability, ripening time, pest and disease resistance, and other traits. Importation and grape breeding programs have increased the diversity of grape varieties available to growers in the USA, but reliable descriptive information, and quality and agronomic data, may be limited or spread among many websites. The aim of this website is to compile science-based information on wine, table, and raisin grape varieties and provide search tools to help growers find varieties that meet their needs.