Though handy when blankly staring at the racks or a menu, wine knowledge is otherwise useless clutter taking up space better reserved for more important things, like beer knowledge. For savvy on demand, try Nirvino
Los Gatos-based Nirvino aggregates over 245,000 reviews, searchable by vintner + vintage, or by scanning its "Newly Popular" and "Lowest Priced" lists (then growing dismayed to find these lists aren't at all the same).
In addition to their broad range of critics -- from Wine & Spirits to The Detroit News -- they also assign each bottle a simple "good" or "bad" rating, reflecting the difficulty of numerically averaging W&S's "93" with Detroit's "Vroom!".
The iPhone version also includes retail price, so you'll know that while the bottle you're drinking's "good", the hosing you'll take on the markup is "soul-crushingly bad"
Because you sometimes eat food, each entry comes with simple pairings (duck, lamb, beef, etc) -- though every man knows that that all animals go great with Schlitz.