does anyone know which website provides free online japanese lesson?

Answer 1

Here are some. I hope at least one of them helps:
http://www.japanese-online.com/
http://www.nhk.or.jp/lesson/
http://japanese.about.com/
http://www.studyjapanese.org/
http://www.easyjapanese.org/
http://www.mylanguageexchange.com/Learn/Japanese.asp
http://www.omoshiroigame.com/
http://www.laits.utexas.edu/japanese/joshu/index.htm
http://www.learnjapanesefree.com/
http://test.u-biq.org/