Keep it simple!
Google Site Search
Google Boolean Search (AND, OR)
Google Phrase Search
Google Truncated Search
The Atlantic: theatlantic.com
PBS: pbs.org
NPR: npr.org
The New Yorker: newyorker.com
Salon: salon.com
The New York Times: nytimes.com
The Boston Globe: bostonglobe.com
Washington Post: washingtonpost.com
Discover Magazine: discovermagazine.com
Scientific American: scientificamerican.com
Smithsonian Magazine: http://www.smithsonianmag.com/