Telegraph
http://historywired.si.edu/detail.cfm?ID=324
History of the telegraph from HistoryWired
http://www.telegraph-history.org/
Lots of details about telegraph equipment and the people and companies associated with it
http://www.telegraph-history.org/samuel-morse/signature.html
The story of Samuel Morse's last telegraph message
http://www.telegraph-history.org/map2.htm
A map of telegraph stations in the U.S. in the 19th century
http://atlantic-cable.com/
An extensive site on the history of the Atlantic Cable
http://www.pbs.org/wgbh/amex/cable/
The companion website for the PBS documentary on the Atlantic Cable
http://www.civilwarsignals.org/pages/tele/telegreely/telegreely.html
A detailed history of the telegraph during the Civil War xxx
History of the telegraph from HistoryWired
http://www.telegraph-history.org/
Lots of details about telegraph equipment and the people and companies associated with it
http://www.telegraph-history.org/samuel-morse/signature.html
The story of Samuel Morse's last telegraph message
http://www.telegraph-history.org/map2.htm
A map of telegraph stations in the U.S. in the 19th century
http://atlantic-cable.com/
An extensive site on the history of the Atlantic Cable
http://www.pbs.org/wgbh/amex/cable/
The companion website for the PBS documentary on the Atlantic Cable
http://www.civilwarsignals.org/pages/tele/telegreely/telegreely.html
A detailed history of the telegraph during the Civil War xxx