Iron Horse Vineyards, Girard Winery, Windsor Vineyards and Windsor Sonoma Vineyards in Sonoma County and Napa Valley have launched an innovative campaign on Facebook to generate awareness about renewable energy and provide a way for Facebook's 90 million users to actively participate in motivating wineries to go green. San Francisco-based Village Green Energy created the Facebook application, named "Green My Vino," which launched on August 6.

It's like a petition with a guaranteed outcome from participation. If Facebook users get behind this effort, they know they can make a change. For us, it's an incentive to incorporate green energy in our sustainability strategies. -- Joy Sterling, CEO, Iron Horse