Among adults who go online, 8% use Twitter.
The most popular subjects for tweets from Twitter users are related to personal lives, activities or interests.
The Triangle Shirtwaist Factory fire on March 25, 1911 is widely credited with boosting the then-nascent union movement. But 100 years later, unions command the support of fewer than half of the public.
On the eve of military intervention in Libya by the U.S. and its allies, by a wide margin Americans felt the U.S. did not have a responsibility to intervene in the conflict.
As the New York Times begins charging for access to its website, the gap between the number of Americans who read newspaper online and in print continues to narrow.
The great majority of Brazilians say either that their nation is already one of the most powerful in the world (24%), or that it will eventually become so (53%).
The sweeping changes in family structure that have occurred roughly over the past 50 years have split the public into three roughly equal groups: Accepters, Rejecters and Skeptics.
In the case of a federal government shutdown, the public splits -- and sharply so along partisan lines -- over whether President Obama or Republicans in Congress are to blame.
Only in Nigeria, among predominately Muslim countries surveyed, does a plurality express positive views of al Qaeda as well as its leader bin Laden.
In a 2010 survey, the extremist group Hezbollah receives its most positive ratings in Jordan, where 55% of Muslims have a favorable view; a slim majority (52%) of Lebanese Muslims also support the group.