The beer world is a pretty unique place. While most captains of industry wouldn't dream of giving away trade secrets, brewers aren't afraid to share their recipes and collaborate. "You wouldn't find Google and Yahoo! building a website together," Ken Grossman joked during his introduction of Life & Limb, a collaboration between his brewery, Sierra Nevada, and Sam Calagione's Dogfish Head. The two breweries are fairly different in their takes on craft beer. Sierra, based in Chico, is one of the original craft breweries, known for their superb Pale Ale. Despite their extremely wide distribution, they produce sustainable, bottle-conditioned ales that tend to have balanced, clean flavors.