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The world's largest encyclopedia available on the Web at Wikipedia is user generated, and anyone can create or edit an article (see wiki). Founded in 2001 by Jimmy Wales, as of 2019, there are nearly six million articles in English, as well as articles in every language on earth. Wikipedia has been written and edited by tens of millions of contributors, with more than a hundred thousand routinely adding to the English version.

Admired and Criticized
Wikipedia's range of subjects is unparalleled, covering topics that would never appear in any conventional encyclopedia, online or print. There are so many "eyes" looking at an entry that erroneous information is often caught rather quickly. However, Wikipedia is also disparaged because people can make edits without divulging their credentials or experience in the subject. In addition, if vendors see comments about their products, nothing stops them from editing the article in their favor (see Wikiality).

There Is a Hierarchy
Although anybody can edit an article, there is a hierarchy. Several hundred Wikipedia administrators have the power to delete entries and block IP addresses to keep people from adding obscene language or stating extremely strong opinions. Jimmy Wales has the ultimate authority. See Wikipedian, Wikia and Uncyclopedia..

A Note from the Author

Wikipedia is a great source for technical details. If you want to know the author and date of Version 1.2 of your application, Wikipedia may be the only source. However, if you want to quickly understand a technical concept, Wikipedia often disappoints. The reason is simple. It takes years to become a good technical writer. I've been writing this reference for nearly 40 years, and, today, I'm doing my best work.

Wikipedia's contributing writers on technical subjects are often brilliant and experienced engineers who know their subject cold, but they do not spend years thinking about how to describe it in simple language that anyone can understand. Instead of one inexperienced writer contributing to a technical definition, a Wikipedia article may be written by a dozen novice writers, each with a different writing style, or often, no style. "Too many cooks spoil the broth."

Because of Wikipedia and the countless other technical articles on the Web that are difficult to understand, our readers come to us first, because they know that if the entry is there, it will be succinct and to the point... at least most of the time. I constantly revise existing definitions to make them clearer. In fact, I have edited some of them a hundred times to make them easier for you to read, and I thank you for doing so.
References in periodicals archive ?
To select Wikipedia articles for evaluation, the authors chose a convenience sample of drugs for which a recent safety alert was published on the Food and Drug Administration (FDA) MedWatch website <http://www.
The person who edited the Wikipedia article for the site also accused Naharnet of being a platform "to incite sectarian hatred, civil war and all sorts of evil in Lebanon.
Bakhtawar's Wikipedia page violated three policies of Wikimedia; copy paste, neutrality and primary source.
I have been involved with Wikipedia for a couple of years now and contribute extensively to a number of topics that interest me, especially related to Pakistan,' Saqib said.
En los ultimos anos se han realizado importantes esfuerzos a favor de un uso formal de Wikipedia en el entorno academico (Konieczny, 2016, Freire & Li, 2016; Meseguer-Artola & al.
In particular, the Wikipedia page on martial law in the Philippines showed a spike in edits last year.
Wikipedia es el caso por excelencia de produccion de conocimiento abierto.
Saqib Quyyam, a prominent Wikipedia editor in Pakistan, is the one who pushed the ban following numerous attempts to edit the page.
Turkish Information and Communication Technologies Authority said that a court had issued an order for a "protection measure" against Wikipedia.
Turkey's telecommunications watchdog said last week that access to Wikipedia had been blocked, citing a law allowing it to ban access to websites deemed a threat to national security.
org/wiki/Wikipedia:Reliable_sources/Noticeboard#Daily_Mail_RfC) requests for comments &nbsp;section [on the reliable sources noticeboard], volunteer editors on English Wikipedia have come to a consensus that the Daily Mail is 'generally unreliable and its use as a reference is to be generally prohibited, especially when other more reliable sources exist,'" the Wikimedia Foundation reportedly said.
Everything you see on Wikipedia is from our community of volunteers, 80,000 in all, who do a small amount of work on one or two topics they are interested in.