Want to be part of the largest group-writing project in human history? This guide explains how you can contribute to Wikipedia the popular user-generated online reference that has become serious competition for the Encyclopedia Britannica. Wikipedia has more than 6 million entries in 250 languages -- 1.5 million articles in the English language alone. Each one is written and edited by an ever- changing cast of volunteer editors. With the guidelines in this book, you can become one of them. Wikipedia: The Missing Manual gives you practical advice on how to create articles and collaborate with fellow editors, how to improve existing articles, and how to work with the Wikipedia community to review new articles, mediate disputes, and maintain the site.