Anarchy is the absence of a separate governing body. In an anarchist system participants themselves govern all aspects of the system.
There are different types of anarchist societies:
Socialist Anarchism is also known as Anarcho-Socialism, Anarcho-Communism, Direct Democracy and True Democracy. In these communities, the citizens themselves are the executive, legislative, and judicial powers of the community. The citizens directly vote for the laws that bind the community.
Information-Anarchism emphasizes the sharing of Knowledge, Entertainment, Blueprints, etc. It is opposed to all forms of privatizing ideas (Intellectual Property), including Copyrights, Patents and Trademarks.