(Wines&Vines) - More than 8,000 wineries now produce wine in North America according to Wines & Vines, which released the latest data at the 2013 Unified Wine & Grape Symposium. Surprisingly, fewer than half the wineries are in California, reflecting the explosion of wineries throughout the other states and Canadian provinces. WinesVinesDATA, the magazine’s market research team, provides these numbers as a small sample of the information available in the 2013 Directory & Buyers Guide, now available in print and online formats.