This article is from the rec.food.drink.beer FAQ, by John Lock with numerous contributions by others.
In most parts of the world, just go to any place that serves beer and
ask for it. In North America, micro-breweries and brewpubs are the
best places to get freshly brewed, finely crafted beer. But they
aren't everywhere, yet.
Many bars and restaurants are beginning to offer high quality beers
on tap and in bottles. Don't fall into the trap of asking for an
"import" when you want a good beer! The market today is such that you
could easily end up with a very disappointing import while missing a
truly wonderful domestic. Always, always, always ask to see a beer
list. Servers are not always educated in beer lore and may
misinterpret what you are looking for in a good beer.
Most liquor stores carry a good selection of bottled beers. Many
major grocery chains are also beginning to carry remarkable
selections.
 
Continue to: