Arpanet - Advanced Research Projects Agency Network
It was formed back on 1968 (when I was born), although it had been proposed as early as 1962.
http://www2.dei.isep.ipp.pt/docs/arpa-Introduc.html - History of ARPNet
http://en.wikipedia.org/wiki/ARPANET - wikipedia entry about Arpanet. (Historical note: Queen Elizabeth sent her first email in 1976)
http://en.wikipedia.org/wiki/History_of_the_Internet - wiki's Internet history
http://www.nic.funet.fi/index/FUNET/history/internet/en/arpanet.html - IP was first adopted in 1983
http://www.computerhistory.org/exhibits/internet_history/Arpanet was shut down in 1990.
EmailBy 1971 the standard form of the email address was defined, although "email" existed as far back as 1965.
BITNet - Because It's Time Net
Formed in 1981, it originally consisted of only two universities, Yale and CUNY. It peaked in 1991, but it faded with the growing popularity of the Internet in the early 1990s.
http://kb.iu.edu/data/aaso.htmlhttp://en.wikipedia.org/wiki/Bitnethttp://www.livinginternet.com/u/ui_bitnet.htmNetNorth and CA*Nethttp://ist.uwaterloo.ca/cn/netnorth.html - Canada's equivalent of NSFNet was NetNorth, formed in 1983 and consisted of two universities, Guelph and Waterloo, connected at 2400-baud. In 1984 they joined the US university BITNet (Because Its Time Network), then adopted the IP standard in 1989. By 1991, the CA*Net backbone was formed. NetNorth ended after 1992.
NSFNet - National Science Foundation Network
The first wide area network was formed in 1984 with the the first Internet backbone established in 1986. This was the year I graduated from high school and started university. About this time the term "Internet" was coined.
Search EnginesBy 1990, the Internet was complex enough to require search engines. Canada' Archie search engine was developed in 1990 as was Webcrawler. This was followed by WAIS (Wide Area Information Server) and Gopher in 1991, the latter which served as a hypertext interface.
World Wide WebHypertext was developed in 1991, hence our "birthdate" for the Internet. The date refers not to the coining of the phrase or the development of the system, but the public availability of an easy way to present and transfer information. In other words, the "birthdate" of the Internet is really the birthdate of HTML. Mosaic was the first true web browser and came out of a funding initiative pushed into existence by Al Gore.