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Local Group - http://www.cs.cmu.edu/~tpope/local-group/index.html
An extensively thought-out future history, illustrative glossary, and brief notes on the Boolean race. Emphasizes exploration and political intrigue. |
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Lungfish Alpha - http://groups.yahoo.com/group/Lungfishalpha/
A science-surrealist world that doesn't so much blur the lines between genres as pave over them, Lungfish Alpha combines space opera, cyberpunk, and fantasy into a unique world. |
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The Community - http://www.angelfire.com/realm2/comgalaxy/
Includes a number of interstellar colony histories and some astronomically realistic star maps. |