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.
It is important that the information in Wikipedia be true and accurate. To help ensure this, we have the Verifiability Policy, which states that all facts presented on Wikipedia must be verifiable.
When writing facts, it is very important that you cite your sources! Stick to a factual style even when writing about fiction or opinions. Providing references is particularly important for controversial opinions—instead of using weasel words like some people believe... you should cite sources to help readers learn who believes what, and why.
Keep in mind that the folks at Wikipedia's Reference desk are very knowledgeable across a wide range of subjects, and they may be able to help you track down source references for a particular detail.
We strive to make Wikipedia as accurate and as good as possible. If you see something you know is wrong, be bold and fix it. If you see something that seems wrong, leave a note on the article talk page and remove questionable assertions if no supporting evidence is provided. You can also use a verification template to add a citation needed tag after the text in question.
There is a semi-automated peer review available. The easiest way to install the script is to enable it as a Gadget: go to your user Preferences and check off the MoreMenu, adds Page and User dropdown menus to the toolbar... entry under Appearance and hit save. Each article page will then have a Page and User pull down menu near the top; go to the article; hover on Page; hover on Tools; click on Peer reviewer.
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.