Everything you always wanted to know about currency boards...

Here is an extensive web site on currency boards and dollarization, maintained by Kurt Schuler (conflict of interest notification: he is a former student of mine).

If you doubt Kurt's thoroughness, follow the link to a piece on currency boards in St. Helena, yes that's right the place where Napoleon went. The site also offers an extensive discussion of what went wrong in Argentina, again all links run through the main page. Thanks to the Mises blog for the pointer.