I found a series of articles about money at a historical web journal called Common-Place. Very educational, and a veritable goldmine of trivia nuggets. You will learn that bookkeeping has always been defined by something other than reality, that 17th century Brits sold their silver coins abroad because they were worth more as a commodity than as currency, that the forefather of American banking was an aesthete who wanted banks to look like Greek temples, that the New England Puritans stopped worrying about usury and learned to love the bond, and that Uncle Sam didn't print his own money until the Civil War. And much, much else... The articles are free, too - so you don't have to pay money to read about it.

"Special Issue On Money" from Common-Place