E-tax Matters: Provides basic information on the filing of tax returns, with the opportunity to submit questions to the site's sponsors.
Ernst & Young Global Tax News Digest: Concentrating on a different country each week it aims to provide an easily digestible round up of recent tax news.
Progressive and Regressive Taxes Explained: Essay discussing the concepts of progressivity in taxation, the role of taxation in regulating the economy, and explaining why sales taxes are considered to be regressive.
TaxPolicy.com: Quiz to determine your stance on tax policy.
Taxation of International Executives: A set of documents on the implications of various tax structures for international executives. Provided by the accountancy practice KPMG.