In searching for an english translation of a Silvio Gessel's book about an island where the people go through several money systems I came across this pdf.
It's made by Economy Transformers in collabaration with OxfamNovib and explores problems and possible sollutions of our current emoney and exchange systems and alternatives.
On page 46 it reverences Silvio Gessels book.
I haven't yet read all of it, but from what I did read it seems a thorough exploration in 61 pages.
With Love
Eelco