For Japanese

http://www.rfonline.co.jp

http://www.dos-v.biz/wiki/rfonline/index.php

http://www.mmo-station.com/mmo/rf/about/fun.htm

For International

http://www.rf-onlinegame.com

http://www.rf-online-wiki.com/index.php?title=Links

My Favorite Fan Site of RF

http://sonzoku.blog85.fc2.com/

http://rass.blog43.fc2.com/blog-category-56.html

http://yaplog.jp/grantangel/