KEYWORD RESEARCH METHOD

First check the KEYWORD in Google Adwords.  In Google Adwords check the competition for the KEYWORD (like high, medium, and low), check the monthly global search, and monthly local search.  For the given KEYWORD  if the competition is low or medium and monthly global and local searches are more, you can take that KEYWORD as a keyword.  After deciding that keyword you have to search the competition for that keyword in Google search.  If the competition is less for the keyword what you have taken then finally you can decide that KEYWORD as a keyword.