TAX DIRECTORY - TAX CENTERS Books / Income Tax - Scroll Listing or Search by Author, Title or Subject
Armchair Millionaire Tax Center
- Forms, Tips, Tools and Strategies, Plus Boards and Chat
Barnes and Noble: Books / Income Tax - Scroll Listing or Search by Author, Title or Subject Tax Center - Tax Software, Calendars and Guides
Business Center: Tax Information - Tax Links, Providing an Assortment of Tax Information
Center for Debt Management: Tax Center - Online Tax Filing, IRS Forms, Books and Software
Clergy Tax Net - Salary Planning, Laws, Preparation, Products, and Mortgage Financing Tax Center - Investing, Retirement Planning, Tax Insight, Calculators and Forms
Deloitte & Touche Center for Multistate Taxation - Research and Education
Deloitte & Touche Tax Planning Guide - Information Relative to Minimizing Your Taxes
E*Trade Tax Center - Articles, Books, Calculators, Estimator, Rates, Strategies and More
Gary Klott's Tax Planet - Former NY Times Tax Columnist Creates an Extensive Resource Tax Center - How Your Home and Mortgage Impact Your Taxes
IRS - The Digital Daily
- Income Tax Forms, Instructions, Publications, Rulings, Notices, etc.
MoneyCentral Taxes
- Editorials on a Variety of Tax Topics taxes - Editorials on a Variety of Tax Topics; Money 101 - Tax Tips Tax Center
- Tax Forms, Ask the Expert and Tax Tips
The Motley Fool - Tax Issues Particular to Investing, Including FAQs and a Message Board
National Taxpayers Union - Promotes Less Taxes and Less Wasteful Government Spending
Nation Tax Center - Payroll, Sales and Use Tax
NCPA Tax Center - A Gathering Place for Those Who Strive for Change (Various Policy Sites)
Prudential Investments Tax Center - Tax Guides, Links and Phone Numbers Tax Center - Calculators, Discussions, Q&As, Rates & Rules, Software and More
Snap Tax Center - Discussion Groups, Forms and Documents, Links, Products and Tools 
Tax Foundation - A Nonprofit Policy Research Organization That Monitors Fiscal Issues
Vanguard Funds Tax Center - Filing and Investing Resources, Preparation Data and Tools
Yahoo! Tax Center
- E-filing, Features, Resources, Sites, Tips and Tools