Wiki has probably the quickest description
http://en.wikipedia.org/wiki/Dark_Conspiracy
But for a better overview you can always look at the various book descriptions here
http://rpg.drivethrustuff.com/browse.php?cPath=4764
And if you want to ask any questions, try the main forum here
http://www.darkconspiracytherpg.info/forums/index.php
And if you want to browse some ezines that support it, try the following: -
Protodimension ezine
http://www.protodimension.com/zine/?page_id=101
Demonground ezine
http://www.demonground.org/index.php...lder&Itemid=58
You'll have to register at Demonground before you can download any of the Demonground magazines.