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Links to video content on YouTube or Google Video (or other, similar content aggregators) are allowed, provided the material linked to is not obviously infringing copyright, is relevant to the article, and is a primary source or a reliable and irreplaceable secondary source. This is the same policy as for any other external link.
Anyone can create a website or video and then claim to be an expert in a certain field. For this reason, self-published media is often not acceptable as a source. Self-published videos may be used as sources of information about their creator if they meet the requirements seen at restrictions on using self-published sources. The community ...
youtube-dl -F <url> The video can be downloaded by selecting the format code from the list or typing the format manually: youtube-dl -f <format/code> <url> The best quality video can be downloaded with the -f best option. Also, the quality of the audio and video streams can be specified separately and merged with the + operator. [35]
As an external link: Generally no. Regular websites are strongly preferred, but exceptions are made for official links when the subject of the article has no other Web presence. As a reliable source: * Sometimes. The official page of a subject may be used as a self-published, primary source, but only if it can be authenticated as belonging to ...
A secondary source contrasts with a primary, or original, source of the information being discussed. A primary source can be a person with direct knowledge of a situation or it may be a document created by such a person. A secondary source is one that gives information about a primary source.
External links and references are two important elements of Wikipedia that newcomers sometimes find trouble with. This page is designed to cover only the technical aspects of linking and referencing; it is essential that editors also familiarize themselves with Wikipedia:External links, Wikipedia:Reliable sources and Wikipedia:Citing sources, as well as Wikipedia's various other policies ...
Mirror sites are often located in a different geographic region than the original, or upstream site. The purpose of mirrors is to reduce network traffic, improve access speed, ensure availability of the original site for technical [2] or political reasons, [3] or provide a real-time backup of the original site.
If the identity of the author can be confirmed in a reliable, published source, then it can be used with the caution appropriate to a self-published source. Facebook : Facebook is generally not acceptable as a reliable source, as anyone may create a page and add comments, and there is no stringent checking of a user's real name and age.