Ad Astra - Bi-monthly magazine of the National Space Society - articles on all aspects of space development and colonization.
Frontier Theory - Articles on why humanity needs a frontier, some of them focused specifically on space colonization.
Lunar Base Quarterly - Berlin publication with conference and meeting notices and forums for discussion of development of the Moon.
Moon Miners' Manifesto - Monthly publication with articles on development of the Moon, Mars, and the rest of the solar system.
Odyssey OnLine Space Newsletter - Newsletter of OASIS, Los Angeles chapter of the National Space society. Educational information about outer space, space settlement, exploration, and industrialization.
Space Age Publishing Company - International space news and events updated daily; emphasis on private enterprise and lunar enterprise; subscription required for most material.
The Spacefaring Web - Archive of John Carter McKnight's essays on creating a space-faring civilization.
