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AncientScripts.com
provides information about writing systems from all over the world, as well as phonetics and historical linguistics.
http://www.ancientscripts.com/
Complex-Text Languages - An Overview
presents an overview of aspects of the writing systems of a large family of languages that are collectively called complex-text languages.
http://www.opengroup.org/onlinepubs/9638399/overview.htm
Left Shorthand
Gregg Shorthand manual for left- and right-handed people.
http://www.werelight.com/shorthand/
Omniglot
guide to writing systems, with details of many different alphabets, syllabaries, and logographic systems.
http://www.omniglot.com/
Study of Chinese Writing Systems
examines Chinese orthography by looking at the representation of phonograms.
http://www.humboldt.edu/~cllc/writesys.htm