• State Tax Agencies
• State and Local Taxing Jurisdictions ...Ryan & Co.
• State CPA Societies
• State Law ...Cornell U.
• State Courts ...Villanova U.
• State Cases and Codes ...FindLaw
• State and Local Governments ...Library of Congress
• State and Local Government on the Net ...Piper Resources
• State Tax Rates and Structure ...Federation of Tax Administrators
• State Tax and Finance Data ...Census Bureau
• State Payroll Taxes Information ...Symmetry Software

• Sales Tax Rates ...Sales Tax Clearinghouse
• State and Local Government Finances and Employment ...PDF file  ...Statistical Abstract of the U.S.
• State Payroll Taxes Information ...Symmetry Software
• State Tax and Finance Data ...Census Bureau
• State Tax Rates and Structure ...Federation of Tax Administrators
• Tax Bites ...Tax Foundation
• Taxes/Budget Data ...Stateline.org

National Level

• @Tax Associations
• Center for State and Local Taxation
• Committee on State Taxation
• Council of State Governments
• Federation of Tax Administrators
• Institute for Professionals in Taxation
• International Association of Assessing Officers
• Multistate Tax Commission
• National Association of Counties
• National Association of State Auditors, Comptrollers and Treasurers
• National Association of State Boards of Accountancy
• National Association of State Budget Officers
• National Association of State Information Resource Executives
• National Center for State Courts
• National Conference of State Legislatures
• National Governers' Association
• National League of Cities
• National Tax Association
• National Taxpayers Conference
• Rockefeller Institute of Government
• Tax Executives Institute

State Level

• Alabama Public Affairs Research Council
• Alabama Society of Enrolled Agents
• Arizona Society of Enrolled Agents
• Arizona Tax Research Association
• California Inland Society of Tax Consultants
• California Society of Enrolled Agents
• California Taxpayers' Association
• Colorado Society of Enrolled Agents
• Connecticut Policy and Economic Council
• Florida Society of Enrolled Agents
• Florida TaxWatch Research Institute
• Georgia Association of Enrolled Agents
• Hawaii Tax Foundation
• Idaho Associated Taxpayers
• Iowa Taxpayers Association
• Louisiana Association of Tax Administrators
• Louisiana Public Affairs Research Council
• Maryland Taxpayers Association
• Michigan Citizens Research Council
• Minnesota Taxpayers Association
• Missouri Society of Enrolled Agents
• New Jersey Public Affairs Research Institute
• New York State Society Of Enrolled Agents
• North Carolina Society of Enrolled Agents
• Ohio Public Expenditure Council
• Ohio State Society of Enrolled Agents
• Ohio Taxpayers Association
• Oregon Taxpayer Association
• Oregon Taxpayers United
• Oregon Tax Research
• Rhode Island Public Expenditure Council
• Texas Society of Enrolled Agents
• Texas Taxpayers and Research Association
• Utah Society of Enrolled Agents
• Utah Taxpayers Association
• Washington Research Council
• Washington State Society of Enrolled Agents
• Wyoming Taxpayers Association

• Corporate Tax Publishers
  • Multistate Tax Analyst ...PDF file
  • Sales and Use Tax Review ...PDF file
• E-Commerce Taxation
• E-Commerce Taxation Links ...A. Nellen
• Sales Tax News and Tips ...Sales Tax Institute
• Sampling in Sales and Use Tax Audits ...Will Yancey
• State and Local Taxation and Economic Growth... ...Joint Economic Committee
• State and Local Taxes Weekly ...RIA
• Stateline.org ...Pew Center on the States
• State News ...Council of State Governments
• Streamlined Sales Tax System
• Tax Analysts
  • e-Commerce Tax Report
  • Politics of State Taxation
  • Readings in State Tax Policy
  • State and Local Taxation Discussion Group ...[ Archives ]
  • State Tax Feature Story of the Week
• Tax Cybrary ...Vertex
• Topics in State & Local Tax ...Ryan & Co.
  • Associations and Research
  • Electronic Commerce Tax
  • Excise and Fuels Tax
  • Federal Law on State & Local Tax
  • Finding People and Firms
  • Income and Franchise Taxes
  • Payroll Tax
  • Property Tax
  • Sales and Use Tax
  • Sampling for Audits
  • Severance Tax
  • Unclaimed Property and Escheat Law
• U.S. Tax Monitor ...Taxware