- Bankrate.com - Taxes - Click on Taxes at left.
- IRS Forms and Publications
- The Digital Daily - Internal Revenue Service
- IRS Audit Technique Guides - Search: audit technique guides
- Pennsylvania Department of Revenue
- Roth IRA Web Site
- State Government Tax Collections
- State Sales Tax Rates
- Tax and Accounting Sites Directory
- Tax Guide for Investors - Contains free info.
- The Tax Prophet - Useful information about taxes.
- 1040.COM -Tax information, forms, instructions, and publications.
- TurboTax - Quicken
- U.S. Tax Code On-Line - Full Text and searchable.