Restoring the Sacred and Holy Name of God (YHVH)

How can we worship the One True God if we dont know His name? How will we proclaim it to all the nations of the earth? Why was His name removed from the original KJV Bible? Does the Third Commandment really tell us we arent ever to speak or call upon His name? Check out this very interesting web site I ran across: http://www.revelations.org.za/NotesS-Name.htm