An interview with Bernard von NotHaus, creator of the Liberty Dollar, suggesting that as early as 2005 he had received word via a third party that his private barter currency may have in some part provided some inspiration to Satoshi.

Just some additional context for how early Satoshi may have been puzzling through Bitcoin's creation.

Good article. I enjoy this historical stuff. I hope I'm around to read a definitive history of bitcoin once it's written.