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Wikipedia:Wikimedia sister projects
To link sister projects using traditional inline text links, see Help:Interwikimedia links.
This page documents an English Wikipedia style guideline.
It is a generally accepted standard that editors should attempt to follow, though it is best treated with common sense, and occasional exceptions may apply. Any substantive edit to this page should reflect consensus. When in doubt, discuss first on the talk page.
Wikimedia sister projects are all the publicly available wikis operated by the Wikimedia Foundation, including Wikipedia. This guideline covers Wikipedia's relations to the sister projects, including linking and copying content between a Wikipedia article and a sister project's article.
Sister projects
Wikipedia is hosted by the Wikimedia Foundation, a non-profit organization that also hosts a range of other projects:
The above list of the current English language sister projects can be easily duplicated using the {{Wikipedia's sister projects}} template.
When to link
Wikipedia encourages links from Wikipedia articles to pages on sister projects when such links are likely to be useful to our readers, and interlingual crosslinking to articles on foreign-language editions of Wikipedia whenever such links are possible.
By far the most common use of links to the non-Wikipedia sister projects is the use of images that are stored on the Wikimedia Commons site (see Wikipedia:Wikimedia Commons).
How to link
See also: Help:Interwiki linking and Help:Interlanguage links
Wikisource has original text related to this article:
The Wind in the Willows
Links to sister projects are made in several ways:
Where to place links
See also: Wikipedia:Manual of Style/Layout § Links to sister projects
Sister project links should generally appear in the "External links" section, or where appropriate in citations. Two exceptions are links to Wiktionary and Wikisource that may be linked inline (e.g. to an unusual word or the text of a document being discussed).
Some appropriate material from Wikimedia Commons may also be linked within the main body of an article. See Embedding Commons' media in Wikipedia articles. Links to Wikinews should not be made within the main body of an article, being made only as per the external links guideline.
Wikimedia Commons has media related to Wikipedia logos.
A box-type template can result in excessive white space when the section is laid out in columns.
Most box-type templates such asshown at right should be put at the beginning of the last section of the article (which is usually, but not necessarily, the "External links" section) so that boxes will appear next to, rather than below, the list items.[a] Do not make a section whose sole content is box-type templates. Many box links can be unified to one by using {{Sister project links}} or {{Sister project}}.
Sometimes box-type templates are not aesthetically pleasing, either because there are no external links except sister project ones, or because they result in an odd layout, such as a long sequence of right-aligned boxes hanging off the bottom of the article or excessive white space when the section is laid out in columns. In such cases, consider using "inline" templates, such as {{Commons-inline}}, in the "External links" section, so that links to sister projects appear as list items, like this:
Media related to Wikimedia Foundation at Wikimedia Commons
Sister project links are normally made only once within an article, as with standard links to other Wikipedia articles,
Notes
^ There are exceptions to this general rule. For example,
{{Wiktionary}}
often appears near the top of disambiguation pages and a
{{wikisource}}
template might appear to the right of a TOC if an article is about a treaty to which Wikisource has the original text.
Soft redirects from Wikipedia to a sister project
Sometimes an entry is more appropriate on some other sister project than on Wikipedia because they are of a non-encyclopedic scope (e.g. they can never be expanded beyond a simple dictionary definition, or call for a level of detail more appropriate to a textbook). Normally, such articles are copied to the more appropriate sister using the transwiki process, and deleted from Wikipedia afterwards.
However, if a word or phrase is commonly wikified, it is quite likely that the deleted entry will be quickly re-created again by well-meaning users. The re-created article is likely to again become non-encyclopedic.
To avoid this, do not delete after transwiki'ing. One solution, as suggested by Wikipedia deletion policy, is to instead normally redirect the word to a relevant article within Wikipedia. For instance, Organize could redirect it to a well-developed Organization article via #REDIRECT [[Organization]].
If this is not possible, turn a Wikipedia page into a soft redirect to a sister project. The plain {{soft redirect}} template should not be used in the mainspace. Instead, use one of the specialized templates (see below). These templates inform readers of information on the sister project: in the case of this example a link would be provided to the wikt:Organize article. This has multiple benefits:
  1. It brings the sister projects closer together
  2. It prevents future clean-up issues
Wikipedia does not currently have an article on "Organize", but our sister project Wiktionary does:
Read the Wiktionary entry on "Organize"

You can also:
Specialized soft redirect templates
Please keep in mind that only topics with a less-than-encyclopedic scope that are commonly wikified words or that are repeatedly recreated should become soft redirects. We don't need a soft redirect for every possible word or phrase to be included in Wikipedia.
Mainspace exclusive
Linking between projects
Main page: Help:Interwikimedia links
ProjectLong formShortcut
Wikipedia[[wikipedia:]]
[[w:]]
Wiktionary
[[wikt:]]
Wikinews
[[n:]]
Wikibooks
[[b:]]
Wikiquote
[[q:]]
Wikisource
[[s:]]
Wikispecies
Wikiversity
[[v:]]
Wikivoyage
[[voy:]]
Wikimedia Foundation
[[wmf:]]
Wikimedia Commons
[[c:]]
Wikidata
[[d:]]
Meta-Wiki
[[meta:]]
[[m:]]
Wikimedia Incubator
MediaWiki
[[mw:]]
Phabricator
[[phab:]]
Unified login or Merged Account
Main pages: Wikipedia:Unified login and Help:Unified login
Unified login is a mechanism which allows users to use a single login across the majority of the Wikimedia Foundation's sister projects. This allows users to maintain a consistent identity throughout Wikimedia, following a single sign-up. Other advantages of this mechanism include the removal of the threat that impersonation poses and the ability to visit many projects without having to go through the labors of logging in everywhere. Users can create a unified login by visiting Special:MergeAccount on a project where they already have an account, and following the prompts.
See also
Last edited on 5 April 2021, at 01:07
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