Have you checked out the IRS Tax Map this year? If not, what better way to spend April 15 (aside from actually filing those returns, of course).
The IRS Tax Map, as explained here, actually began as a project in 2002, as a prototype to address the business need for improved access to tax law technical information by the agency’s call center workers. These days, Tax Map is available to taxpayers to offer them topic-oriented access to the IRS’s diverse information products, as well. It aims at delivering semantic integration via the Topic Maps international standard (ISO/IEC 13250), grouping information about subjects, including those referred to by diverse names, in a single place.
It was created for the IRS by Infoloom in cooperation with Plexus Scientific and Coolheads Consulting. Infoloom explains on its web site that it lets customers control what is returned by search queries via a topic map approach that lets them extract from existing content information on the topics they need to represent, without having to build a taxonomy of terms, and add specific knowledge to that information as part of the extraction process.