What’s still valid in 2018

Hi everybody,
We know

  1. Affiliate Marketing boomed in 2014
  2. CPA is great to make little money but is it worth the effort? New Google Ranking Policies make it harder to get auth. backlinks. Paid Traffic is still there ready to go but Mobile is very competive while having low payouts at the same time
  3. Facebook Ads boomed 2 years ago. At that time was much easier to be aggressively advertising. The real problem is not the account ban, but rather payment method-ban . Am I the only…

What's still valid in 2018