more traffic more profits

on of the most important thing you should understand the following 4 points to succeed in adsense empire :
1. content المحتوى
2.keywords الكلمات المفتاحية
3.your ads اعلاناتك
4.visitors زوار موقعك
the previous 4 elements are the most important elements to succeed in (( Google adsense ))
content : one of the most important thing you should make attractive site and ask yourself what make others come again to my site and what will make them come again and again
waht make others add my site to their bookmarks
if they do not benefit from your site they will never come again
keywords : other thing which affect the revenues collected from google adsense . what this means ????
this means that if you choose high paying keywords you will gain more than choosing low paying keywords.
as example : if you choose low paying keywords and you have 4 visitors per day so your profits will equal
in the month = 30*4*.4= 48 dollars but if you choose high paying key word your profits will equal
in the month =30*4*10= 1200 dollars . you see the big difference between the two situations
but the question how to know the high paying keywords..................................?????????