Published by the Office of the Federal Register, National Archives and Records Administration (NARA), the Federal Register is the official daily publication for rules, proposed rules, and notices of Federal agencies and organizations, as well as executive orders and other presidential documents.
Your favorite government agency!
Current and historical conversion rates for 164 currencies are available. "You can view any exchange rates among the 164 currencies for any day since 1 January 1990 through today. The currency converter is updated daily at 8:00 p.m. EST."
"The Savings Bond Wizard helps you manage your savings bond inventory. This Windows application allows you to maintain an inventory of your bonds and determine the current redemption value, earned interest, and other information. You can also print your bond inventory, providing you with an important record if you ever need to replace any of your savings bonds. The Wizard makes it easy and fun to manage your savings bond investment!"
US Department of the Treasury
A ton of information on federal legislation, congress and committees. Provides many useful links not only within the federal government, but also to state legislative sites.