There are many free Internet sites which provide telephone numbers for people and businesses. These sites are more than just simple telephone directories. They include e-mail addresses, personal information, business information, and more. Most can be searched by name (person or business), by phone number (reverse lookup), by address, by business category, and by e-mail address.

• AnyWho Online Directory
  Find a Business, Find a Person. Yellow Pages, White Pages, Reverse Lookup.

• BigBook
  Yellow Pages, Shopping, Web Search.

• BigYellow

• Da+ (Directory Assistanceplus)
  Find a Business, Find a Person, Reverse Phone Search, Quick Search (on Type of Business)

• Infobel World - Telephone Directories
  Links to online white, yellow, and business directories for more than 180 countries.

• InfoSpace ®
  Yellow Pages & White Pages. Find a Business by Type, Find a Business by Name, Find a Person.

• Internet 800 Directory

• Netscape Reverse Lookup
  Reverse Phone Number (U.S. Only), Reverse Address (U.S. Residential Only), Reverse Email (Worldwide)

• SuperPages.com
  Simple Search, Map-Based Search, Search by Distance. Customize “My Directory.” Yellow Pages, People Pages, City Pages, Consumer Center.

• Switchboard
  “Your Digital Directory.” Find a Business, Find a Person, Search by Phone, Web Search, Area & Zip Codes, Maps/Directions

• WhoWhere? People Finder (Lycos)
  White pages, Web results, professional profile, alumni information, and more. Yellow Pages/Business Search.

• Yahoo: People Search
  Phone Search, Email Search

• Yahoo: Yellow Pages

• WorldPages
  Business Listings, People Listings, Maps