Main pages: Wikipedia:Who writes Wikipedia? and Wikipedia:Wikipedians
Further information: Wikipedia:Administration § Editors
Anyone with Web access can edit Wikipedia, and this openness encourages the inclusion of a tremendous amount of content. About 120,000 editors—from expert scholars to casual readers—regularly edit Wikipedia. These experienced editors often help to create a consistent style throughout the encyclopedia, following our Manual of Style. Experienced or not, contributors are also called "editors" or "Wikipedians".
Several mechanisms are in place to help Wikipedia members carry out the important work of crafting a high-quality resource while maintaining civility. Editors can watch pages, and technically skilled persons can write editing programs to track or rectify bad edits. Where there are disagreements on how to display facts, editors often work together to compile an article that fairly represents current expert opinion on the subject. Aspiring authors may wish to read the information on Contributing to Wikipedia before contributing to the project.
Although the Wikimedia Foundation owns the site, it is largely uninvolved in writing and daily operations.