TopReference.com offer reference website links to browse for education, libraries, dictionaries, colleges, universities, k-12, language schools, book and magazines.

Addresses

Listings
Search for people and businesses in the white and yellow pages.
http://www.411.info
Phone numbers and addresses for persons and businesses in the United States. Includes links to directories for other countries.
http://www.anywho.com/
search for people in the United States using name, address, or phone number.
http://www.freepeoplesearch.info/
International dialing codes and numbering plans.
http://www.numberingplans.com/