When I was in Pittsburgh this summer, I went to Penn Brewery and had their Weizen. Soooooo good.
If you like German food too, great place to hit up. It's on the North Shore. That's all I got for something the general public may not know about.
Other faves include:
Rolling Rock
Sam Adams Summer Ale, Hefeweizen, Winter Lager, Cream Stout
Yuengling Lager
Molson Canadian (probably just because I drink it when I am at the beach)