Bitcoin is a digital currency and it uses peer-to-peer technology to operate with no central authority. Therefore, it does not depend on the monetary policy of any central bank, but rather evolves based on the user performing an activity. A long list of merchants accepts bitcoin for payment.
The theoretical roots of Bitcoin can be found in the Austrian school of economics led by Eugen v. Böhm-Bawerk, Ludwig Mises und Friedrich A. Hayek. The economists criticize the current fiat money system and the current money creation process in a fractional-reserve banking system. Friedrich A. Hayek wrote some influential publications like Denationalisation of Money (1976, PDF), in which he claims that governments should not have a monopoly over the issuance of money and for returning to money based on the gold standard.
At the moment Bitcoin is the most popular digital currency inspired by the Austrian scholl of economics. With cryptographic methods the problem of double spending was solved the the total number of available coins is limited. Therefore, it can be used for payment services.
Bitcoin is not perfect and it is discussed controversial, but we decided to support Bitcoin. Since July 2011 it is accept for payment for premium services by JonDos GmbH. Now we offer an anonymous Bitcoin Shop and you may find hints for anonymous administration of your wallet in our onine help.
Update 1: Because of licensing requirements and orders of BaFIN we can offer the Bitcoin shop only for our customers (the user of JonDonym). Please use our anonymisation service to get access to our Bitcoin shop.
Update 2: At the moment the pool of Bitcoins is sold very fast. We are working on a solution to supply the pool with new Bitcoins depending on the selling rate. But it will take a few days.