is there any good source about that?
A Forum search on "openings" gave many links to possibly useful threads:
http://www.chess.com/forum/search?keyword=openings
it is not for you to know all opening you should concentrate on 1 or 2 opening that you like and try to know every thing about them.
each opening has story.
it is beter the opening be unnormal and unkown.
is there any good source about that?