By the way, if you are interested in the Austrian School of economics, which advocates a free market, the Ludwig van Mises Institute has a very expansive collection of over 4100 articles, books and essays freely availiable as PDFs and eBooks here (http://mises.org/literature.aspx).

Also, I recommend reading about the Keynesian School of Economics, which advocates central planning in the form of a central bank (The Federal Reserve), so you can best make your own decision. Wikipedia has very good introductions to both schools, and can provide a basis for your further readings.