* http://www.truetype-typography.com/tthints.htm
 * http://developer.apple.com/textfonts/TTRefMan/index.html

== Instructing Fonts ==
http://developer.apple.com/textfonts/TTRefMan/RM03/Chap3.html#H_instr

== Âü°í ¸µÅ© ==
=== xgridfit ===
http://xgridfit.sourceforge.net/

=== dejavu wiki ===
http://dejavu.sourceforge.net/wiki/index.php/Hinting