23-page PDF (negative) analysis from religious viewpoint.
The Mission of the Acton Institute is to promote a free and virtuous society characterized by individual liberty and sustained by religious principles.
This is probably the primary reason Christians should avoid acquiring and holding
the currency: At best they are gambling with God’s money; at worse, they are hoping to
sell an object with no intrinsic value to someone more greedy or gullible in the hopes of
getting out before the bubble pops.
As a currency, the story of Bitcoin is likely to become nothing more than a
footnote in obscure economic journals, but its legacy on information technology and
peer-to-peer based trust systems may be as significant. The question we Christians must
ask is whether we should encourage the growth of a system in which thousands of people
will eventually lose real, significant wealth in the hope that it might lead to such
innovations that last as long as the stones of Yap.
http://blog.acton.org/wp-content/uploads/2013/04/Carter_The-Story-of-Bitcoin.pdf