This may be the best hard SF site on the web.
http://www.projectrho.com/rocket/index.html
Here's another one.
http://members.aol.com/oscarcombs/settle.htm
Cool!
I am thinking of running a sci-fi Narrativist RPG at my school with the hopes of improving general and scientific literacy.
These sites will help.
Dredj, those are really neat!
Thanks! And here's more food for thought:
http://www.transhumanism.org/index.php/WTA/index/