Answer:
Streaming across the Web or the Internet has been growing in popularity for a few years, but in 2020, because of the pandemic, became very popular. I expect that it will continue to be used widely but not quite as much once we get the coronavirus under control.
Streaming is where you are sending a live transmission (or signal) across the Internet carting voice and video of what is going on right now. It is live so what you see is what is occurring.
This has meant that church services could be broadcast across the Internet without people needing to be at the church. Classes can be taught to students at home from teachers who may be at home or either of them could be other places. Although streaming is mainstream now, on back several years I have streamed class sessions to my students when I was sometimes somewhere well away from the campus or my house, like being at the national BB match in Arkansas or the Kiwanis convention in Paris, France.
Streaming is quite often done using social media as many of them have made the service available there. However, people can do streaming using other services. Popular places that streaming occurs include Facebook and YouTube. When you do the communication services like Zoom, TEAMS, WebEx you are using similar services of the Internet.