Welcome to the community portal. This is the place to find out what is happening on Wikipedia. Learn what tasks need to be done and what groups there are to join, and share news about recent events or current activities taking place on Wikipedia.
Wikipedia is, by number of articles, the largest encyclopedia ever to exist. However, many articles are stubs, or otherwise need attention. If you like, go ahead, be bold, and jump right in. If you are not ready to fly solo, you can participate in a Collaboration.
Assess articles by quality or by importance—pick a topic of interest and grade according to that WikiProject's scale. (See links from article talk pages.)
Adopt an Outline, to help develop and maintain a table of contents to a major subject on Wikipedia.
WikiProjects are ongoing team efforts to improve articles having to do with a particular subject, and to manage the logistics of that topic. Hundreds exist — examine the master list to find one that interests you.
Wikipedia has many help pages, policies, and departments. Here are some of the most general. For a comprehensive list of Wikipedia's departments, see the Wikipedia department directory.
Wikipedia has many established policies, guidelines, conventions, and traditions. This is a very brief sampling of some of the most important; for more information, see the main policies and guidelines page. Policies and guidelines apply to both articles and how to work with fellow editors. For easy access, the shortcuts to the pages are also listed.
When you edit a page, you can use the Preview button (located right next to the Save page button) to see in advance what your edits will look like. This lets you check your work periodically without filling up the page history by making lots of smaller edits. The preview function can also help you avoid mistakes, such as when using an unfamiliar type of wiki markup. The preview will appear together with the edit box you have been working in (either above or below it, however you prefer).