One of the best resources for Austrian Economics. It has a huge amount of free books and articles. If the subject of economics intrigues you, the is the best place to be.
The continuation of Ron Paul's 2008 Presidential Campaign. An unbelievable resource for up to date news about Ron Paul. It also has a wide variety of educational resources that everyone should take advantage of.
All about the income tax issue. They do an amazing job of explaining statistics about filers vs. non-filers. They are currently offering a $300,000 prize to anyone that can find the law that states American's are required to pay income taxes.
Analysis of business, economics, and public policy from the free marketing/limited government perspective. Intelligent, frequent, and fun to read articles you won't find anywhere else. Also has a great forum.