Over the past year, it has become increasingly obvious to affiliate program managers that advertisers have become much more focused on buying traffic from PPC and ASO. 

🤔 Why so? If a webmaster doesn't drive motive from keys like "free/cash for free", PPC and SEO are the fastest paying off traffic for adsense (if he knows how to retention rate), as there are no tools for additional fluffing in PPC/SEO itself. 

Even after that comes FB APPS and ASO. BUT! It doesn't mean that you should quit FB and go to PPC. After all, if a webmaster: 

🟢Has GEO expertise;

🟢 Understands the target audience;

🟢Utilizes relevant approaches where neither ROI nor quality of traffic suffers;

🟢Knows how to create a competent push grid for full-fledged RR;

🟢Works in conjunction with the advertiser and affiliate program, because who but the product knows its TOP audience!

...then FB will become hot traffic, on which will be generous bumps!

Conclusion: if you thoroughly approach to the bay and set yourself the goal to bring the most relevant players to the product, the source does not matter, because the approach is 50% of success in any business.