Spuyten Duyvil Grocery
A small shop in a tiny mall (fittingly called the "Mini Mall") on one of Williamsburg's main streets, Bedford Avenue, that is the kind of specialist merchant that you can only find in New York. They have no web site but they do have 200+ of the best-rated beers, ales and ciders from around the world.
There's nothing like a specialist. They guys really know their beer.
What to know:
Because they have a license to operate as a grocery store, they also sell a few things besides beverages, including Mast Bros. Chocolates and other snacks. Open every day but Monday. Hours are 1:00 - 9:00 pm.