bbdd
culture

http://www.chineseetymology.org/CharacterEtymology.aspx?characterInput=%E8%BB%8A&submitButton1=Etymology
http://www.ionly.com.cn/  
http://humanum.arts.cuhk.edu.hk/Lexis/lexi-can/  
http://study.hanguo.net.cn/home/
http://korean.sogang.ac.kr/  
http://tchinese.seoul.go.kr/