Dialogue Concerning the Exchequer - A late twelfth century essay concerning all that went on at the bi-yearly meetings of the medieval exchequer officials, and branches out into a description of all the sources of revenue of the English crown, and of the methods of collecting them. From the Medieval Sourcebook.
English Finance - Entry from the 1911 Encyclopaedia Brittanica. Courtesy of the LoveToKnow Corporation.
The Taxatio Database - A database containing the valuation, plus related details, of the English and Welsh parish churches and prebends listed in the ecclesiastical taxation assessment of 1291-2.