The History of the Internet

Dave Kristula's chronology of the development of the Internet from the early days of ArpaNet.
http://www.davesite.com/webstation/net-history.shtml

Hobbes' Internet Timeline

Robert H. Zakon highlights key events and technologies that helped shape the Internet.
http://www.zakon.org/robert/internet/timeline/

Keith Lynch's Timeline of Net Related Terms and Concepts

Chronology details when certain terms, concepts, stories, and people were first mentioned online.
http://keithlynch.net/timeline.html

History of the Internet and Web

Anthony Anderberg gives a timeline of communications and the Internet from 700BC to 1999, with references.
http://www.anderbergfamily.net/ant/history/

A Little History of the World Wide Web

A hyperlinked timeline from 1945 to 1995, with references, from The World Wide Web Consortium.
http://www.w3.org/History.html

Poynter: New Media Timeline

David Shedden looks at the history of new media journalism and the Internet.
http://www.poynterextra.org/extra/Timeline/index.htm

Internet Chronology

Lawrence G. Roberts gives a list of events up to 1999.
http://www.ziplink.net/%7Elroberts/InternetChronology.html