The Internal Revenue Service
Home of the IRS on the Web. The IRS has definitely done a nice job on their Website. Source for all IRS publications and forms.
La. Dept. of Revenue & Taxation
State tax information, tax forms, etc.
Social Security Online
The Official Website of the U.S. Social Security Administration.
Daily stock quotes.
Historical Stock Quotes
Look up historical cost data for your stock or mutual fund.
La. Secretary of State
Louisiana Secretary of State's website.