What tastes like liquid gold to some dudes tastes like utter crap to others. So when your bro hands you a bottle of beer that you've never tried, much less heard of, then you can get a non-biased third party to weigh in before you take a swig. It's a site called 'Should I Drink This F'cking Beer?' and it tells you (or your bro) chose wisely or chose like a douche.
All you have to do is log on to ShouldIDrinkThisFuckingBeer.com and key in the name of the beer that you're thinking of trying. The site will either tell you to go ahead and drink it, or call you some mean name and recommend a better brew that you should drink instead.
The site was created by "a fan of good beer" and it actually encourages people to support craft breweries.