| BBC - Space: Features a variety of resources for space exploration and introduction to space flight. Includes many interactive and 3D animated views. |
| Encyclopedia Astronautica: Comprehensive resource providing articles on most space technology subjects and space flight history. |
| European Space Industry Directory: ESID is an ESA database of more than 400 space companies and 1000 products. |
| Heavens Above: Real-time satellite, ISS, and Space Shuttle orbital pass information, maps, and star charts. |
| John Hopkins University: Developer of a range of spacecraft and scientific payloads providing project overviews, scientific and engineering articles. |
| Jump from Space.: Features a Russian project to sky-jump from space (over 40km altitude). Includes background of the project initiator, Mogamed Tolboev. |
| Launchdate: Offers an updated list of coming launches, information about ionizing radiation and related resource links. |
| NASA Skywatch Sightings Calculator: A Java applet that will calculate when spacecraft will be visible in the night sky over the viewer's own location. |
| Russian Space Web: News and history of the Russian space program by Anatoly Zak, a journalist. |
| Space and Astronomy Reference Links: Provides a space and astronomy related directory. |
| Space Projects and Info: Offers a collection of popularized material on space projects and astronomy. Includes forums and merchandising. |
| Space Travel and Exploration: News, information, and resources about space exploration for the armchair space traveler. |
| Usenet space archive: Large collection of google group postings on all aspects of space exploration and development. |
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