Bitcoin is a new digital currency with a twist. The twist is that there is no central authority, no bank, etc. It is based on peer-to-peer networking just like bittorrent. The advantage is that just as governments have been unable to shut down bittorrent, they have no way of identifying, freezing or stealing bitcoin accounts (if you are careful). Here is an article explaining more about bitcoin.
Here is a nice simple article that explains agorism. It doesn’t explain the relationship between bitcoin and agorism but once you understand something about both of them the relationship becomes clear.
Further exploration of the archives of the Bitcoin Weekly lead me to an article about how an online community could choose to incorporate the taxes it’s members freely consent to right into its currency. One of the criticisms of the state’s central bank’s power to increase the money supply – i.e. inflation – is that it really is a form of taxation. Well, recognizing this, and obtaining consent to using it for this purpose, could be a noncoercive means for funding the community’s common endeavours.
For trading in the Bitcoin currency Trade Hill has been recommended by some.