Learn the Net: This excellent site provides an valuable introduction to the Internet. What is the Internet, Web, e-mail, Newsgroups and much more? How do you use search engines? All the basics are covered along with many advanced topics. http://www.learnthenet.com   

PBS Internet Timeline History: This site provides a comprehensive history of the development of the Internet from 1960 until the present. The timeline is updated periodically.  http://www.pbs.org/internet/history/     

Web Reference: This reference site is for the advanced Internet professional. It provides hundreds of links categorized by nearly thirty subjects under the headings Web and Webmaster. http://www.webreference.com    

Web Reference: The site also has plenty of reading materials and other features. The contents page is found at: http://www.webreference.com