Money, Weight, & Measures

• xe.com - Universal Currency Converter, foreign exchange rate calculations for every world currency
• calculateme.com - Calculation and conversion utility, under the categories of temperature, currency exchange rates, gas mileage, astronomy, area, speed, time, energy, weight, etc.
• Treasury Direct - U.S. Department of the Treasury offers the flexibility of managing your savings porfolio online buy and redeem securities directly with product information and research across the entire line of Treasury Securities, from Series EE Savings Bonds to Treasury Notes