Tax Planning Resources

Financial Planning Toolkit - In-depth tax planning guide.
Fidelity.com - An excellent collection of tax planning tools.
H&R Block - Online resources from the knowledgeable folks at H&R Block.
AICPA - A very informative article on tax planning for retirement.
IHateFinancialPlanning.com - Income tax planning explained.
UBS - Tax planning services from one of the country's most powerful financial firms.