Pop-ups and popunders both work for affiliate marketing, but for someone just starting out, popunders may be a better option. Popunders open behind the main browser window, so they don’t interrupt the user immediately. This helps reduce bounce rates and keeps users on the main site while still showing your offer in the background. Pop-ups show directly in front of the screen, and while they grab attention fast, they can be annoying and get closed right away. If you're just learning the ropes, popunders might give you better results without turning visitors away too quickly. What’s your experience or thoughts about using any of them as a beginner?