http://www.reasonablefaith.org - Philosopher William Lane Craig lays out the contingency argument for God's existence.
Here's the contingency argument in more detail: http://www.youtube.com/view_play_list?p=A7CE655E55212940
A podcast (by Dr. Craig) on the argument: http://www.rfmedia.org/RF_audio_video/Defender_podcast/20040425ArgumentfromContingency.mp3
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