Here you can digest how to use Wikipedia, in bite-sized morsels. The tips listed below were created for the Tip of the day project, or the Styletips project, but are listed here by title and organized by subject area for your convenience.
The lead section is an essential
summary of an article, located above the first heading.
In the source text (the text in the edit window), a heading looks like this:
== This is a heading ==
The lead section is a very important part of every article. The length should correspond to the overall length of the article: an article of 50,000 characters might well have a three paragraph lead, while one of 15,000 or less should limit itself to one or two paragraphs. The text should give a good overview of the article, but it should also get the reader hooked and interested in learning more. Take a look at some featured articles for inspiration.
It is often a good idea to align a representative image with the lead by placing [[File:Filename.jpg|thumb|caption]] just before the first heading. (Filename is the name of the desired file and caption is a description of the image).
...it is inappropriate to cite Wikipedia as a source, because it is updated in real time. So from the time you cite a Wikipedia page to the time another person looks up your citation, the page may have changed. Citations are usually only applicable to static publications that do not change once they are published. Wikipedia is not a static publication, it is dynamic!—it changes every minute. In this sense, Wikipedia is not a reliable citable source.
How reliable is Wikipedia as a general resource? Very reliable. Most of the content on Wikipedia is accurate, and many subjects are updated faster than the news. But, Wikipedia is subject to being edited by almost anyone and any time, and the edits may be biased, out of date, incorrect, or malicious (vandalism). Therefore, it is advisable to double-check what you learn in Wikipedia against other sources.
Keep in mind that many volunteers monitor Wikipedia for errors. Since there are so many people reading the articles and monitoring contributions using the Recent Changes page, and using watchlists, incorrect information is usually spotted and corrected quickly.
Some argue that new errors are also introduced all the time, so that the overall accuracy rate is not really improving. Nevertheless, by encouraging people to help with correcting articles, validating content, and providing useful references, errors will eventually be greatly reduced.
The more accurate Wikipedia becomes, the more it attracts additional contributors. It is a self-reinforcing cycle!
For a listing of current collaborations, tasks, and news, see the Community portal. For a listing of ongoing discussions and current requests, see the Dashboard.
