Extra.

Extravirginity.com aims to build a community of people fascinated by great olive oil, and start a grassroots revolution in oil quality, one post, conversation and oil tasting at a time. Growing out of the New Yorker article "Slippery Business" and the just-published book Extra Virginity, Extravirginity.com -- still in its infancy -- will give consumers solid advice about buying and enjoying oil, connect them with skilled oil-makers, celebrate the culture of this storied substance, and reveal mislabeled and fraudulent oils that cheat consumers and undercut honest producers.

There is much more at extravirginity.com.

Know your food.