Keyword Research needs a lot of time and patience because you have to perform in-depth research. As the famous quote by Bill Gates goes “Content is the King”, he was referring to the future of internet where content will become the biggest market. Yes, Content has become a very big of a marketplace. So by this understanding, we can say “Content is the King but Keyword is the Throne”.
If your content does not sit on the throne, Search Engines will not give it good rankings. I have written a detailed blog post on How to do Keyword Research for your Website. It will teach you the step-by-step procedure to find the best possible and profitable keyword.