Video is king right now online and you need to have a good understanding of marketing with video.
If you are not marketing on Facebook, Youtube, Twitter etc then you are missing out.
Although not a new thing 2017/2018 saw the start of the funnel craze and if you are not using funnels then you are missing out.
One of the easiest ways to make money online, use other people's assets to promote and earn a commission. Last but not least build a membership site to build recurring income. If you build something people will pay monthly for then you are onto a winning formula.