Content is the container word for digital creations you write, draw, photograph, video record etc.
Marketing Technology, the craft to put your content and products out to an audience.
You will also find powerful articles on how to build an audience for the things you created and published on the web. Maybe to sell, to share, or just to show off.
And most of the photos on this blog I have made myself, and I shoot them with an iPhone 12 mini. With the photos I want to give a personal touch to the content.