World Building and some tools i've found useful

If you have never heard of world building it is basically creating the world(s) that will be the setting for you sci-fi / fantasy story
 http://en.wikipedia.org/wiki/World-building 

I have just started creating a world which will be the setting for a roleplaying game i will be dm'ing and possibly for use in any short stories i may try to write (http://cychosys.com/  for anyone interested in the system i'll be using)

Since this is my first time constructing my own universe I spent a while gathering info and tips on how others build their worlds

Some links that i have found useful so far are
http://hiddenway.tripod.com/world/  (page full of links to worldcon resources)

http://laetusinpraesens.org/docs/alien1.php   (alien encounters)

http://www.sfwa.org/2009/08/fantasy-worldbuilding-questions/  (questions a world builder should ask themselves in regard to the people and cultures of their world)

http://www.mikevanpelt.com/adhoc//outlines.html  (general info for fantasy based worldcon)

I just just started with my world so not much about it yet, but in the future i will post some info about it

i am so god damn manly i don't use periods while typing