• ATT 800 Directory At times down...
• Switchboard - residential and business phone directory
• Big Yellow (U.S. Yellow Pages)
• Infospace (phone numbers, fax numbers, foreign numbers)

• UPS
• U.S. Postal Service
• Federal Express

• The World Clock
• Time Zone Map and Local Time
• Date and Time Gateway
• Navy Time Standard Site

• Import/Export Library by ACR Intl phone codes
• Phone Area Code 2 Way Index
• Address Checker
• Better Business Bureau
• Virtual Reference Desk Lots of other office tools and resources
• Reference Desk (phone codes, zip codes, etc)

• Knowx also has business info
• American Information Network
• CDB Infotek
• National Locator & Data

• Tiger Map Service Allows entry of city name or zip and produces a map
  Census data also mapable
• MapBlast Map Maker
• Welcome To MapQuest!

The sites listed above can be of great use to you on a daily basis.
We suggest you become acquainted with all of them and then utilize them as you see fit.

• E-mail address searcher  
• Finding an E-Mail Address