Electronic federal tax payment systems:

 
https://www.eftps.gov/eftps/  

IRS:

 
http://www.irs.gov/  

States Taxes

 
States Taxes & Business Licenses Links: Taxes Sec'y of State Business Licenses
Alabama Taxes Sec'y of State Business Licenses
Alaska Taxes Sec'y of State Business Licenses
Arizona Taxes Sec'y of State Business Licenses
Arkansas Taxes Sec'y of State Business Licenses
California Taxes Sec'y of State Business Licenses
Colorado Taxes Sec'y of State Business Licenses
Connecticut  Taxes Sec'y of State  Business Licenses 
Delaware Taxes Sec'y of State  Business Licenses
District of Columbia Taxes Sec'y of State  Business Licenses
Florida   Taxes Sec'y of State  Business Licenses
Georgia   Taxes Sec'y of State  Business Licenses
Hawaii Taxes Sec'y of State Business Licenses
Idaho Taxes Sec'y of State  Business Licenses
Illinois Taxes Sec'y of State  Business Licenses
Indiana Taxes Sec'y of State Business Licenses
Iowa Taxes Sec'y of State Business Licenses
Kansas Taxes Sec'y of State Business Licenses
Kentucky Taxes Sec'y of State Business Licenses
Louisiana Taxes Sec'y of State  Business Licenses
Maine Taxes Sec'y of State Business Licenses
Maryland Taxes Sec'y of State Business Licenses
Massachusetts Taxes Sec'y of State Business Licenses
Michigan Taxes Sec'y of State Business Licenses
Minnesota Taxes Sec'y of State Business Licenses
Mississippi Taxes Sec'y of State  Business Licenses
Missouri Taxes Sec'y of State Business Licenses
Montana Taxes Sec'y of State Business Licenses
Nebraska Taxes Sec'y of State  Business Licenses
Nevada Taxes Sec'y of State  Business Licenses
New Hampshire Taxes Sec'y of State Business Licenses
New Jersey Taxes Sec'y of State Business Licenses
New Mexico Taxes Sec'y of State Business Licenses
New York Taxes Sec'y of State  Business Licenses
North Carolina Taxes Sec'y of State Business Licenses
North Dakota Taxes Sec'y of State Business Licenses
Ohio Taxes Sec'y of State Business Licenses
Oklahoma Taxes Sec'y of State  Business Licenses
Oregon Taxes  Sec'y of State  Business Licenses
Pennsylvania Taxes Sec'y of State   Business Licenses
Rhode Island Taxes  Sec'y of State Business Licenses
South Carolina Taxes Sec'y of State Business Licenses
South Dakota Taxes Sec'y of State  Business Licenses
Tennessee Taxes Sec'y of State  Business Licenses
Texas Taxes Sec'y of State Business Licenses
Utah Taxes Sec'y of State  Business Licenses
Vermont Taxes Sec'y of State Business Licenses
Virginia Taxes Sec'y of State  Business Licenses
Washington Taxes Sec'y of State Business Licenses
West Virginia Taxes Sec'y of State Business Licenses
Wisconsin Taxes Sec'y of State Business Licenses
Wyoming Taxes Sec'y of State Business Licenses
   

Forex Converter

 
http://www.oanda.com/  

Social Security Online

 
http://www.ssa.gov/  

DOL / Hiring

 
http://www.dol.gov/dol/topic/hiring/index.htm