On July 15, 2006, the influential microblogging site Twitter launched.
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Twitter and other messaging services have allowed populations in remote locations, like these herders in Afghanistan’s Wakhan Corridor, to better communicate, as well as organize politically and economically.
Photograph by Matthieu Paley, National Geographic
(2010-ongoing) demonstrations and uprisings supporting democracy throughout North Africa and the Middle East.
(web log) website that contains online personal reflections, comments, and often hyperlinks provided by the writer.
technique that enlists the public to assist with a specialized task.
important; having the ability to lead the opinions or attitudes of others.
important.
produced by people.
an event occurring naturally that has large-scale effects on the environment and people, such as a volcano, earthquake, or hurricane.
basic computer technology, including both hardware and software, sometimes geared to a specific purpose or application.
having to do with public policy, government, administration, or elected office.
powerful or insightful.
(short message service) data application that allows short text messaging from one device (such as a cell phone) to another.
Few technological innovations in history have made as much of an impact as the Internet. Learn about the predecessor of the Internet, called ARPANET; how text, audio, and video messages are transmitted through the Internet; and how this transmission of information has changed the lives of billions around the world.
The government's Superfund program cleans up toxic-waste sites in the United States. Find out what the program does and how it was established in this article.
UNESCO World Heritage Sites preserve natural and cultural areas "of outstanding value to humanity."
Few technological innovations in history have made as much of an impact as the Internet. Learn about the predecessor of the Internet, called ARPANET; how text, audio, and video messages are transmitted through the Internet; and how this transmission of information has changed the lives of billions around the world.
The government's Superfund program cleans up toxic-waste sites in the United States. Find out what the program does and how it was established in this article.
UNESCO World Heritage Sites preserve natural and cultural areas "of outstanding value to humanity."