Problems, Crashes and Errors of Wikipedia TODAY

Wikipedia is not a reliable source for citations elsewhere on Wikipedia.
As a user-generated source, it can be edited by anyone at any time, and any information it contains at a particular time could be vandalism, a work in progress, or simply incorrect.

Most criticism of Wikipedia has been directed towards its content, its community of established users, and its processes.
Critics have questioned its factual reliability, the readability and organization of the articles, the lack of methodical fact-checking, and its political bias.

On 16 January, Wikipedia co-founder Jimmy Wales announced that the English Wikipedia would shut down for 24 hours on 18 January as part of a protest meant to call public attention to the proposed Stop Online Piracy Act and PROTECT IP Act, two anti-piracy laws under debate in the United States Congress.

So is Wikipedia a credible source? Many of the entries are well-documented, checked for quality and — as opposed to reference books — often completely up-to-date, but, 20 years after its creation, the online encyclopedia is not 100% reliable, because information can be manipulated, and sometimes almost undetectably.