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.
L5 News: Archives of the L5 Society newsletter 1975-1980s.
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.
Space Colonization: A Home for the Dreamers Among Us: Collection of articles and essays on space and space development; publishes suitable submitted articles.
The Spacefaring Web: Archive of John Carter McKnight's essays on creating a space-faring civilization.