Of course, in this short survey we cannot do justice to all the people who have contributed to anarchist thought. And by favoring those theorists who have relevance today, and whose shoulders we stand upon, we have ignored many notable figures in the collectivist camp. By concentrating on ideas instead of movements, we have ignored many significant anarchist events, parties, and organization which played a part in history, such as the Spanish Civil War, the "Internationals," and so on. These are amply covered elsewhere.

The four main economic schools have been already discussed, with the exception of geoism. Geoism used to be called "Georgism" after it's founder and proselytizer, Henry George. It was originally, and still is, mainly a minarchist rather than anarchist philosophy. It's adherents are sometimes called "single-taxers," since they believe that the only morally justifiable tax is a tax on land (interpreted as all natural resources.)

Geoists believe that, since natural resources were not created by man, they cannot be rightfully owned. Thus, land is to be held "in common" or by the world forever. This does not include, however, crops grown on land or structures built on land. Since "everyone," even the yet to be born, owns the land, then individual users of land should pay rent to "everyone." Most geoists, being minarchist, say the land-rent should go to the state. Geoanarchists say it should go to the community, not a state, apparently meaning groups and associations having some objective relationship with the natural resource in question. E.g. the streams and aquifers should belong to the people living in the watershed; so they should receive the rent.

The most significant geoanarchist theorists were probably Albert Jay Nock and Frank Chodorov. While geoism may not be a major school of anarchism, it has had significant influence on other schools. Both mutualists and anarcho-capitalists (e.g. agorists) often appeal to geoist theory, especially with respect to environmental concerns such as the watershed example above. Green and eco-anarchists do so extensively.