When considering starting to publish content online, there are certain questions you will have to answer. One of those is the question as to what form the content you will be publishing is to take. And this is where you will come to learn that there are some three forms in which you can publish content online.
The second form in which you can publish content online is the form of audio. You can, for instance, compose some songs, and then proceed to record them before publishing the recordings online. This sort of action would still qualify you to be referred to as a online content publisher.
The third form in which you can publish content online is the form of video. You can take videos of stuff that is fascinating, post them on a site like YouTube, and proceed to start describing yourself as an online content publisher. And if the videos are particularly popular, you can actually petition Google to include you in its ad revenue sharing program: thus getting a way to monetize this particular publishing venture.