Check out the following links for now:
http://mysite.du.edu/~jcalvert/tel/morse/morse.htm
http://en.wikipedia.org/wiki/Morse_code
http://www.itu.int/dms_pubrec/itu-r/rec/m/R-REC-M.1677-1-200910-I!!PDF-E.pdf
http://www.qsl.net/n9bor/images/The%20Art%20&%20Skill%20of%20Radio-Telegraphy%203rd%20edition%204-02.pdf
http://www.morsecode.nl/ehsc%20club.html