Valid point! I partially didn’t mention it because it is really a vast platform that requires its own articles (which I’ve written about before) but also because Facebook (IMO) is most useful after you’ve already established a personal brand. Mainly through the groups, pages, and advertising features. While these are all very effective tools, they are often misused and can actually damage one’s brand easily. So they are really more of an intermediate step, rather than a blanket suggestion I would make to people.