1. W3C - The World Wide Web Consortium
International industry consortium founded in 1994 whose purpose is to develop specifications, guidelines, software, and tools to promote the Internet's evolution and ensure its interoperability.

2. MapQuest
Find directions for and explore towns and cities worldwide. Display addresses on a map, view nearby businesses, get driving directions and maps, and plan a trip with city information. Also includes aerial photographs of selected areas.
www.mapquest.com

3. Thefacebook
Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, …
thefacebook.com

4. Google Maps
Provides directions, interactive maps, and satellite/aerial imagery of the United States. Can also search by keyword such as type of business.
maps.google.com

5. National Library of Medicine
Research affiliation: Association of Research Libraries.
www.nlm.nih.gov