Wikipedia:Independent sources
 | This is an explanatory essay about the policies and guidelines. This page is intended to provide additional information about concepts in the page(s) it supplements. This page is not one of Wikipedia's policies or guidelines, as it has not been thoroughly vetted by the community. |
 | This page in a nutshell: Independent sources are distinguished by their lack of any direct influence with the subjects involved. Wikipedia encourages the use of independent sources because these sources are typically associated with reliability, a lack of bias, and factual accuracy. |
Identifying and using independent sources (also called third-party sources) helps editors build non-promotional articles that fairly portray the subject, without undue attention to the subject's own views. Using independent sources helps protect the project from people using Wikipedia for self-promotion, personal financial benefit, and other abuses. Reliance on independent sources ensures that an article can be written from a balanced, disinterested viewpoint rather than from the subject's own viewpoint or from the viewpoint of people with an ax to grind. Emphasizing the views of disinterested sources is necessary to achieve a neutral point of view in an article. It also ensures articles can catalog a topic's worth and its role and achievements within society, rather than offering a directory listing or the contents of a sales brochure.
In determining the type of source, there are three separate, basic characteristics to identify:
- Is this source self-published or not? (For this question, see Wikipedia:Identifying and using self-published sources.)
- Is this source independent or third-party, or is it closely affiliated with the subject?
- Is this source primary or not? (For this question, see Wikipedia:Identifying and using primary and secondary sources.)
Every possible combination of these three traits has been seen in sources on Wikipedia. Any combination of these three traits can produce a source that is usable for some purpose in a Wikipedia article. Identifying these characteristics will help you determine how you can use these sources.
This page deals primarily with the second question: identifying and using independent and non-independent sources.