http://www.chimera-interactive.com/si - without which this would be a four or five element system rather than six.

http://www.heraldica.org/topics/orders/ordhist.htm - for a discussion of Orders of Chivalry, providing some basis of concept for some of the slightly-less-mystical Warrior Orders that I may eventually introduce.

http://www.wikipedia.org - It may have errors. Nevertheless it is one of the most-reliable-for-its-speed sources of information on almost every conceivable topic.

http://sea-of-stars.pbwiki.com - The wiki that did the most to motivate the creation of this wiki.

http://www.d20srd.org - For letting me stat encounters without having the three core rulebooks on hand, this website has done a lot to make my campaign possible.

http://www.gaminggeeks.org/Resources/KateMonk/ - Yet another what-would-I-do-without-it? site.

http://www.darklings.org/~mccrohan/Hyrule/ - Nemo and J are players in this game that Sullen and Outlaw have been running almost as long as 3.x has existed.

http://www.piratecat.org/spira/ - A hell of a great Story Hour. I don't know these people in real life, though.

http://imperos.pbwiki.com - A campaign in which I get to PC! Woohoo! (I play Taagna Sunveil, human star-pact warlock.)

http://bloodofbarsaive.pbwiki.com - An Earthdawn campaign. (I play Ordien, dwarf nethermancer.)

http://trumps.pbwiki.com - A Mutants and Masterminds campaign that should be starting up soon.

http://www.asmor.com/programs/monstermaker/index.php and http://www.asmor.com/scripts/4eMonsterMathCruncher/index.php - very handy.

http://arsludi.lamemage.com/ - a gaming blog that has impressed me lately.

http://thebookofworlds.blogspot.com/ - a Mage: the Awakening gaming blog. As far as I know, these are not common, but this is a good one.

Others to come. In this case, the inclusion of one is not the exclusion of all others.