Whois & Analysis for paper.li

Social media are computer-mediated technologies that facilitate the creation and sharing of information, ideas, career interests and other forms of expression via virtual communities and networks.

The variety of stand-alone and built-in social media services currently available introduces challenges of definition; however, there are some common features:

Electronic mail, or email, is a method of exchanging digital messages between people using digital devices such as computers and mobile phones.

Email first entered substantial use in the 1960s and by the mid-1970s had taken the form now recognized as email.

Email operates across computer networks, which today is primarily the Internet.

Some early email systems required the author and the recipient to both be online at the same time, in common with instant messaging.

Today's email systems are based on a store-and-forward model.

Email servers accept, forward, deliver, and store messages.

Neither the users nor their computers are required to be online simultaneously; they need to connect only briefly, typically to a mail server or a webmail interface, for as long as it takes to send or receive messages.

The World Wide Web (abbreviated WWW or the Web) is an information space where documents and other web resources are identified by Uniform Resource Locators (URLs), interlinked by hypertext links, and can be accessed via the Internet.

English scientist Tim Berners-Lee invented the World Wide Web in 1989.

He wrote the first web browser computer program in 1990 while employed at CERN in Switzerland.

The Web browser was released outside of CERN in 1991, first to other research institutions starting in January 1991 and to the general public on the Internet in August 1991.

A newspaper is a serial publication containing news about current events, other informative articles about politics, sports, arts, and so on, and advertising.

A newspaper is usually, but not exclusively, printed on relatively inexpensive, low-grade paper such as newsprint.

The journalism organizations that publish newspapers are themselves often metonymically called newspapers.

As of 2017, most newspapers are now published online as well as in print.

The online versions are called online newspapers or news websites.

Newspapers are typically published daily or weekly.

News magazines are also weekly, but they have a magazine format.

General-interest newspapers typically publish news articles and feature articles on national and international news as well as local news.

The news includes political events and personalities, business and finance, crime, weather, and natural disasters; health and medicine, science, and computers and technology; sports; and entertainment, society, food and cooking, clothing and home fashion, and the arts.

In sales, commerce and economics, a customer (sometimes known as a , buyer, or purchaser) is the recipient of a good, service, product or an idea - obtained from a seller, vendor, or supplier via a financial transaction or exchange for money or some other valuable consideration.

An ultimate etymology of "client" may imply someone merely to do business, whereas a purchaser procures goods or services on occasion but a customer customarily or habitually engages in transactions (historically: the collection of tolls or taxes - see ).

Such distinctions have no contemporary semantic weight.