Half the public says the Supreme Court should base rulings on what the Constitution means now, while 45% say it should be understood as originally written.
Six-in-ten Americans say that the cost of the wars in Iraq and Afghanistan contributed a "great deal" to the U.S. debt.
Three-in-ten say greed and a push for higher profits among oil companies are the main reason gasoline prices have gone up recently.
Despite its growth as a tool in the world of new media, Twitter does not yet drive a substantial amount of traffic to news websites.
Google Search and Google News are the biggest single drivers of traffic to top news websites.
Across the top 25 news websites, three-quarters of all visitors will visit that site only once or twice per month on average.
While gay marriage remains a divisive issue, a 58%-majority of Americans say homosexuality should be accepted, rather than discouraged, by society.
A little more than a third of Americans (35%) say that the increasing number of gay couples raising children is a bad thing for society, down from 50% in 2007.
Three-quarters of the public say most people cannot afford to pay for a college education.
Americans are split on the main purpose of college, with 47% saying it is to teach work-related skills and 39% saying it is to help a student grow personally and intellectually.