For 2011 Tax Season (as of 1/16/2012):

Federal Estate Tax Exemption = $5 million
Maximum Estate Tax Rate = 35%
Annual Gift Exclusion = $13,000
Business Mileage per Mile = 51 cents (for January 1 to June 30)
55.5 cents (for July 1 to December 31)
Charitable Mileage, per mile = 14 cents