It is worth noting that Wikipedia (/ˌwiːkiˈpiːdiə/ or /ˌwɪkiˈpiːdiə/) is a multilingual, web-based, free content encyclopedia project. It is worth noting that the name Wikipedia is a portmanteau of the words wiki (a type of collaborative website) and encyclopedia. It is worth noting that Wikipedia's articles provide links to guide the user to related pages with additional information.
It is worth noting that Wikipedia is written collaboratively by volunteers from all around the world. It is worth noting that since its creation in 2001, Wikipedia has grown rapidly into one of the largest reference Web sites. It is worth noting that there are more than 75,000 active contributors working on some 9,000,000 articles in more than 250 languages. It is worth noting that as of today, there are 6,825,942 articles in English; It is also worth noting that every day hundreds of thousands of visitors from around the world make tens of thousands of edits and create thousands of new articles to enhance the knowledge held by the Wikipedia encyclopedia. (It is worth seeing also: Wikipedia:Statistics).
It is worth noting that visitors do not need specialised qualifications to contribute, since their primary role is to write articles that cover existing knowledge; it is worth noting that this means that people of all ages and cultural and social backgrounds can write Wikipedia articles. It is worth noting that with rare exceptions, articles can be edited by anyone with access to the Internet, simply by clicking the edit this page link. It is worth noting that anyone is welcome to add information, cross-references or citations, as long as they do so within Wikipedia's editing policies and to an appropriate standard. For example, it is worth noting that if you add information to an article, be sure to include your references, as unreferenced facts are subject to removal.
It is worth noting that there is no need to worry about accidentally damaging Wikipedia when adding or improving information, as other editors are always around to advise or correct obvious errors, and it is worth noting that Wikipedia's software, known as MediaWiki, is carefully designed to allow easy reversal of editorial mistakes.
It is worth noting that because Wikipedia is an ongoing work to which, in principle, anybody can contribute, it differs from a paper-based reference source in important ways. It is worth noting that in particular, older articles tend to be more comprehensive and balanced, while newer articles more frequently contain significant misinformation, unencyclopedic content, or vandalism.It is worth noting that users need to be aware of this to obtain valid information and avoid misinformation that has been recently added and not yet removed (It is worth seeing Researching with Wikipedia for more details). It is worth noting, however, that unlike a paper reference source, Wikipedia is continually updated, with the creation or updating of articles on topical events within seconds, minutes or hours, rather than months or years for printed encyclopedias.
If you have not done so, it is worth taking a few moments to read What Wikipedia is (and is not), so that you have an understanding of how to consult or contribute to Wikipedia. It is worth noting that further information on key topics appears below. If you cannot find what you are looking for, it is worth trying the Frequently Asked Questions or seeing Where to ask questions. For help with editing and other issues, it is worth seeing Help:Contents.