Anonymous' organization
Anonymous isn’t truly an organization; not in any traditional sense. They are a large, decentralized group of individuals who share common interests and web haunts. There are no official members, guidelines, leaders, representatives or unifying principles. Rather, Anonymous is a word that identifies the millions of people, groups, and individuals on and off of the internet who, without disclosing their identities, express diverse opinions on many topics.
Being "Anonymous" is much more a quality or a self-definition than a membership. Each project under the Anonymous banner may have a whole different set of instigators. Leadership, when it exists, is informal and carried out in chat channels, forums, IM and public calls to action online. No one's meeting in a board room.
The name Anonymous itself is inspired by the perceived anonymity under which users post images and comments on the Internet. Usage of the term Anonymous in the sense of a shared identity began on imageboards.