Here’s a link to an informative blog post from Tav asserting that bitcoin will fail. Bitcoin may fail or bitcoin may succeed. Either way, you may find this assessment helpful in forming your own opinion. Dave’s response is # 68 on the list reading up from the bottom.
Here’s a video with a reasonably thorough explanation of bitcoin from an enthusiast. Bitcoin discussion starts at 41:56 mark.
Here’s an in-depth article on Bitcoin – hat tip to MaxKeiser.com: http://arstechnica.com/tech-policy/news/2011/06/bitcoin-inside-the-encrypted-peer-to-peer-currency.ars
The associated comment thread and an explanation of the “Schumer (aka The UpChuck) Effect”: http://maxkeiser.com/2011/06/08/is-bitcoin-the-currency-of-the-resistance/comment-page-1/#comment-319000
Yet another bitcoin article: http://www.libertariannews.org/2011/06/06/libertarian-goldbugs-hating-on-bitcoin-free-market-money/
Here’s another link: http://www.dailytech.com/Article.aspx?newsid=21878&red=y#comments
Here’s a video explanation of bitcoin: