Many people put the Cart before the horse if you will.  Many Marketers believe you can just jump out in the marketplace and start marketing without any real thought about WHAT they are marketing & WHY.  I call this "Blind Marketing".  Before you market anything, in the trainings I teach, I believe that before you even get the the actual marketing: You must First of all Know WHO you are & what is your Passion.  Why do I say this you ask?  Because What you Market should be "Powered" by You & your Passion.  When You know Who You are & What You're Marketing & Why you can then determine What your Niche market is.  Now when you Market whatever you market, it takes on New Meaning because you are now Marketing On Purpose.  Because your marketing flows from your passion and now people who encounter you won't forget you because of the passion that flows out of you as you market online or off.  Without this, your Marketing will not be effective Long term in my experience.