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.
Information and Misinformation about Federal Tax Burdens - Center on Budget and Policy Priorities article arguing that the percentage of income that typical middle-class families pay in federal taxes is often overstated. (January 21, 1999)