Directories
Area codes, Zip Codes
- areacodeszipcodes.com: Zip codes and area codes.
- Search by Zip Code
Telephone and E-mail addresses
- USA People Search. Search for individuals nationwide.
- Telephone Directories on the Web. Individual and businesses listings worldwide.
- WorldPages. Interactive mapping and millions e-mail addresses.
- Bigfoot. One of the largest sites for e-mail and white-page listings.
- Switchboard: Nationwide searchable Yellow pages and White pages
- People Search. Searchable database from Yahoo
- AnyWho: Nationwide searchable White pages
- Internet White Pages: 411 Information directory for e-mail addresses
- USSearch.com: Search public records
Business Directories
Universities
- American Universities: List of American Colleges and Universities on the WWW
- International Universities: International list of Colleges and Universities on the WWW
Email address book conversion
- Interguru: Convert email format from one mail program to another