Capitalization of Internet

Conventions for the capitalization of "Internet" (versus "internet") when referring to the global system of interconnected computer networks have varied over time, and vary by publishers, authors, and regional preferences.
The term "Internet" was originally coined as a shorthand for "internetwork" in the first specification of the Transmission Control Program, , by Vint Cerf, Yogen Dalal, and Carl Sunshine in 1974. Because of the widespread deployment of the Internet protocol suite in the 1980s by educational and commercial networks beyond the ARPANET, the core network became increasingly known as "the Internet", treated as a proper noun. Accordingly, its name has since been consistently spelled with an initial capital letter in the English language by technical organizations such as the Internet Engineering Task Force (IETF), the Internet Society, the Internet Corporation for Assigned Names and Numbers (ICANN), and the W3C. Technical authors still also use the uncapitalized form in singular and plural ("internets") forms to describe the interconnection of multiple individual networks. The Oxford English Dictionary says that the global network is usually "the internet", but most of the American historical sources it cites use the capitalized form.
The spelling "internet" has become often used, as the word almost always refers to the global network; the generic sense of the word has become rare in non-technical writings. As a result, "The Chicago Manual of Style" and the Associated Press (AP) both revised their formerly capitalized stylization of the word to lowercase "internet" in 2016. "The New York Times", which followed suit in adopting the lowercase style, said that such a change is common practice when "newly coined or unfamiliar terms" become part of the lexicon.
The Internet versus generic internets.
The Internet standards community historically differentiated between "an internet", as a short-form of an internetwork, and "the Internet": treating the latter as a proper noun with a capital letter, and the former as a common noun with lower-case first letter. An internet is any set of interconnected Internet Protocol (IP) networks. The distinction is evident in Request for Comments documents from the early 1980s, when the transition from the ARPANET, funded by the U.S. Department of Defense, to the Internet, with broad commercial support, was in progress, although it was not applied with complete uniformity.
Another example from that period is IBM's "TCP/IP Tutorial and Technical Overview" () from 1989, which stated that:
In the Request for Comments documents that define the evolving Internet Protocol standards, the term was introduced as a noun adjunct, apparently a shortening of "internetworking" and is mostly used in this way.
As the impetus behind IP grew, it became more common to regard the results of internetworking as entities of their own, and "internet" became a noun, used both in a generic sense (any collection of computer networks connected through internetworking) and in a specific sense (the collection of computer networks that internetworked with ARPANET, and later NSFNET, using the IP standards, and that grew into the connectivity service we know today).
In its generic sense, "internet" is a common noun, a synonym for internetwork; therefore, it has a plural form (first appearing in the RFC series RFC 870, RFC 871 and RFC 872) and is not capitalized.
In a 1991 court case, Judge Jon O. Newman used it as a mass noun: "Morris released the worm into INTERNET, which is a group of national networks that connect university, governmental, and military computers around the country."
Argument for common noun usage.
In 2002, a "New York Times" column said that "Internet" has been changing from a proper noun to a generic term. Words for new technologies, such as "phonograph" in the 19th century, are sometimes capitalized at first, later becoming uncapitalized. In 1999, another column said that "Internet" might, like some other commonly used proper nouns, lose its capital letter.
Capitalization of the word as an adjective also varies. Some guides specify that the word should be capitalized as a noun but not capitalized as an adjective, e.g., "internet resources."
Usage.
Increasingly, organizations that formerly capitalized "Internet" have switched to the lowercase form, whether to minimize distraction ("The New York Times") or to reflect growing trends as the term became generic ("Associated Press Stylebook"). According to Oxford Dictionaries Online, in 2016 "Internet" remained more usual in the US, while "internet" had become predominant in the UK.
Capitalized.
Organizations and style guides that capitalize "Internet" include the United States Government Printing Office, "Time", and the Modern Language Association (thought not specifically mentioned in the MLA Handbook). 
Lowercase.
Organizations and style guides that use lowercase "internet" include "Wired News" (since 2004), CNN (since 2010), "AP Stylebook" (since 2016), "The New York Times" and "Wall Street Journal" (both since 2016),"" "The Chicago Manual of Style" (since 2017), APA style (since 2019), "The Economist", the "Financial Times", "The Times", "The Guardian", "The Observer", "The Sydney Morning Herald", the BBC, BuzzFeed, and Vox Media. The technology companies Apple, Microsoft and Google also use lowercase.