The most recent version of TaxMap is available here.
TaxMap is an electronic research tool used by telephone call sites as well as by taxpayers. TaxMap is based on a network navigational model (Topic Maps), which enables research by subject. It has been designed to be easy to use, and its production does not require any change in workflow. TaxMap is made using a combination of automatic processes and human input by IRS tax experts. We use TMLoom to produce TaxMap.
TaxMap contains the IRS forms, instructions, and publications, the tax law Frequently Asked Questions, and TeleTax topics.
TaxMap exploits the extensive use of XML and SGML at IRS.
The TaxMap version for assistors is available only on the IRS Intranet.
February 13, 2009. IRS is now publishing Tax Map on the Web, and the contents is frequently updated when new publications and forms are published. Tax Map is available at http://taxmap.ntis.gov
"The IRS Tax Map", Michel Biezunski, presented at XML Europe 2003 Conference, May 5-8, 2003, London, UK.