Hitting Ireland up...

As craft-beer distribution here in Europe is completely different from the US - so let us first know where you're going. Then we can recommend shops and beers There are many great Irish craft-brews, but they are not distributed in a large scale!

 

In Galway and Dublin there are the Galway Bay bars. Some nice beers.
http://www.galwaybaybrewery.com/
In particular "Of foam and fury" a DIPA is very nice.

In Dublin and Cork there is the porterhouse bars. I find their beer average.

http://www.porterhousebrewco.com/

In Cork we have the Franciscan Well, Rising Sons which are both brewpubs.
And also
http://thebierhauscork.com/
which always has 10+ taps of beer mostly local Irish. This is the place to go in Cork I feel.

Enjoy your trip. I feel these are good places to start

8Degrees, Trouble, lots more breweries to try.

 

Drink whatever the pub has... it's Ireland for chrissakes!

 

If you are up Belfast direction Brewbot Belfast shouldn't be missed, other notable mentions are The Woodworkers, The Garrick and The Sunflower Bar.

 

This.

 

Good list.

 

Ahh gee, I should have looked here before we went just a week ago! Sadly, I had more Guinness than I cared for, and didn't find ANY Murphy's Stout. And it may sound a little cliche, but I had a Hop House Lager 13 by Guinness and quite enjoyed that. This is the trouble with traveling with non-beer drinkers... There was a bar somewhat near the Guinness storehouse that looked quite nice, but I never made it.