WorldbuildingConstructing an SF Universe
"What's needed to build a world?" - a good checklist with questions that can help flshing out a world.
Starmapping3D Starmaps by Winchell Chung. The definitive howto web-guide.
MappingWilbur - a terrain modelling program.
World Builder - a planet modelling program with continental drift and climate simulation.
XenobiologyHow to design an alien by Jack Cohen, from New Scientist, 21 December 1991, Vol.132 No.1800 Page 18
Inflating Lorentzian Wormholes by Thomas A. Roman (Phys.Rev. D47 (1993) 1370-1379) - the "factual" basis of the higgsram drive.
Foresight Institute - Nanotech policy think tank.
We, Borg by Anders Sandberg - maybe some ideas for Unity.
Posthumanity - some ideas about posthumanity.
EconomicsEncyclopedia of the New Economy
CultureChina the Beautiful - useful material for Penglai.
Basic Interlingua Course - while the lingua of Arcadia is not strict Interlingua, it can be an useful inspiration.
Auxilingua - Interlingua and other constructed languages.
Online Dictionaries - Many languages.
Remember that Babelfish can be used to translate into Spanish/Portugese for the Victorians.
Transhumanism resources - a lot of resources that can be useful for this setting.
Nicomachean Ethics by Aristotle