If you are looking for a way to help, find a job that suits you, read the appropriate background pages, and be bold.
If you are looking for editors who do a particular job, find their project pages and noticeboards.
If you are here for the fuzzy feeling, stand back and marvel at the range of work that is done daily by other Wikipedians.
Visit the talk page to propose a new job before editing this page.
Translate articles from a variety of other languages.
Sometimes, articles are contributed to in other languages. The contributions contain important content so helpers are needed to decipher them and reveal the inner content to the public. You don't need to know a language (although it's preferred); you can just use a translator (such as Google Translate) to get a rough translation and then edit it some more to make it flow better.
Wikipedia gets thousands of edits per day - unfortunately many of these are vandalism. As a Recent Changes Patroller, you are the first line of defense against such abuse, ensuring that readers of Wikipedia are not faced with vandalized content where they expected to find a useful article.
Help delete spam articles before the public sees them.
Some people, either acting in good faith or maliciously, create new articles which aren't suitable for inclusion in Wikipedia. By participating in new article patrol you can ensure that these articles are deleted as soon as possible. And for that rare gem of a good article right out of the gate, New Article Patrollers are in an excellent position to make sure that it's nominated for the Did You Know... section of the Main Page.
See Wikipedia as it really is, and learn a lot of random information.
Random article patrol is a chance to appreciate how good (and how lacking) Wikipedia is. It's a wonderfully soothing experience, especially after tedious maintenance tasks. As a bonus, it can be a great training tool to sharpen your knowledge if you're a trivia buff or are scheduled to appear on Jeopardy! Just go to random pages and fix what you can.
Help editors come to a consensus with minimal conflict.
Providing unbiased commentary is a great chance to improve your Wiki-relations. Instead of debating, you can read the arguments of opposing editors and suggest a compromise that is in Wikipedia’s best interest. By doing so, you will learn a lot about the policies.
Help edit and nominate articles or review nominations of articles for good article status.
Find potentially good articles and work on them for a while to bring them up to a high standard. Then nominate them for Good Article status. Or on the other hand, you can review good article nominations and critique them.
Come to receive or post reward listings for editing tasks.
The Rewards Board is a place where anyone can come to either post a task that they want done in exchange for a reward or to fufill a task in exchange for a reward. The rewards offered are mostly barnstars but some people offer items or money for their tasks.