This article, written by Colm O hAonghusa and originally published in Accountancy Ireland, discusses the important new XBRL taxonomy XBRL GL. This taxonomy makes it possible to tag data at a transactions level within an accounting system. The article goes on to argue that the best business case for XBRL can be found in its use for internal reporting. It is hosted in this blog with the express permission of the author and of Accountancy Ireland. The link is at http://www.zorba.ca/XBRLGL.pdf