Morse Code / CW 
http://boyslife.org/games/online-games/575/morse-code-machine
http://www.qsl.net/ik0ygj/enu/
http://www.telegraph-office.com/
http://www.history.com/topics/inventions/telegraph#
http://www.morsekey.net/
http://cw.hfradio.org
https://en.wikipedia.org/wiki/Morse_code_for_non-Latin_alphabets
http://www.g4fon.nethttp://lcwo.net
http://morsecode.scphillips.com/translator.html
https://docs.google.com/document/d/1uoIdz1Sqm1taU_EYng4FGWcxObWtCZFtA1a9m8dZ8vs/edit?usp=sharing
https://www.pinterest.com/pin/127015651967580163/
http://www.qsl.net/wn2a/cwlab04x.htmlhttp://wp.rac.ca/simplemorse
http://www.dxatlas.com/CwSkimmer
http://www.polar-electric.com/Morse/MRP40-EN/index.htm
  
http://www.elekitsorparts.com/product/funtronics-k3ng-keyer-fk-10-99-winkey-emulation