ODP - Open Directory Project
"The Open Directory Project is the largest, most comprehensive human-edited directory of the Web. It is constructed and maintained by a vast, global community of volunteer editors."
Games: Roleplaying: World_Building: Science_Fiction:
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- Constructing an SF Universe - Excellent article by professional, published science fiction author, S. Andrew Swann..
- Planetary Fact Sheets - Includes physical data describing the planets, satellites, and comets of our solar system, courtesy of NASA's National Space Science Data Center. Potentially useful to designers of science fiction settings and the detail-minded..
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