・その他
ibus-skk
https://github.com/ueno/ibus-skk/downloads
uim-skk
http://code.google.com/p/uim-doc-ja/wiki/UimSkk
scim-skk
http://sourceforge.jp/projects/scim-imengine/releases/?package_id=3205
iiimf-skk
http://sourceforge.jp/projects/iiimf-skk/
SKK by JavaScript
http://www.jmuk.org/skkjs/skk.html