You can use social media platforms like Facebook, Instagram, and Twitter to drive free traffic. You should join relevant groups and communities to engage with your audience. You can also use Pinterest to share content and drive visitors to your affiliate links. You need to create valuable posts that attract your target audience. You can start a blog and use SEO to rank higher in search results. You should focus on creating high-quality content that people find useful. You can use YouTube to share videos and promote affiliate products. You can also share your content on forums like Reddit and Quora. You need to be consistent and provide value to build trust. Free traffic takes time but can be very effective in affiliate marketing.