If you want to market the internet, then much to learn about marketing. Then you have to have the market (which community is the internet)
The product is what you are going to market and with the use of internet that's how you'll market those products and services that you are offering.
Since we are in the world where everything can happen with the use of internet, for newbies out there.
Try to start with the SEO this is the most popular nowadays and will give you a better experience that can help you to land a better job in the future.