Hi Norf, (If I may call you that).
Welcome to the Preneur Community!
All those Internet Marketing factors, you quote, will be of interest to most of us here, as they are not only forms of gaining subscribers and customers but also tactics for earning money for our current or proposed businesses.
I am looking at the huge Self development category and hope to find a suitable sub, or even sub, sub niche, on which to get started very soon. I intend to commence with providing information products and eventually form my own membership platform.