Do you have an iPhone? Then stop what you're doing right now and download  the Nirvino  (my preferred online drinking community) wine ratings guide . With over one million wines listed by name, price, grape varietal, flavor profile, region, and producer, the wine application is an amazing resource to always have at your fingertips.
Not only does it provide food pairing suggestions, but there's also lots of fun lists to browse. Food Network's Aida Mollenkamp  shares her favorite wines  to drink while cooking, Sommelier Mark Bright  rounded up his top bottles  from Whole Foods, and yours truly has even created  a list!
I headed to Safeway  to pick out the best wines — all of which are under $20 — for hostess gifts. I've tasted and enjoyed these wines and would bring them to a party. Be it a birthday bash  at Hog Island oyster farm, an intimate Thanksgiving dinner , or an upcoming holiday soirée , there's a bottle for every occasion. To check out my list, keep reading.
2007 Pepi Napa Valley  Sauvignon Blanc - $7.98
2008 Clos du Bois North Coast Chardonnay - $9.99
2006 Concannon  Central Coast Zinfandel - $13.99
2005 Marques de Caceres Crianza Rioja - $14.99
2007 Avalon Napa Valley Cabernet Sauvignon - $12.98
2007 Sebastiani Sonoma Coast Pinot Noir - $12.98
2008 Francis Coppola  Sofia Blanc de Blancs - $15.98
NonV Chandon California Blanc de Noirs - $15.98
2007 Wattle Creek Mendocino Sauvignon Blanc - $9.48
2006 Charles Krug Yountville Cabernet Sauvignon - $18.98
2008 Mark West  California Pinot Noir - $9.48
NonV Bonny Doon Pacific Rim Dry Riesling - $9.98
2008 Honig Napa Valley Sauvignon Blanc - $13.98