Lonely Planet (www.lonelyplanet.com/usa) Destination information, hotel bookings, traveler forum and more.
National Park Service (NPS; www.nps.gov) Gateway to America's greatest natural treasures, its national parks.
Eater (www.eater.com) Foodie insight into two-dozen American cities.
Punch (www.punchdrink.com) Quirky guides and helpful insights on how to drink well in America's cities.
New York Times Travel (www.nytimes.com/travel) Travel news, practical advice and engaging features.
Roadside America (www.roadsideamerica.com) For all things weird and wacky.