Information on trending affiliate marketing niches can be found through several reliable sources. First, affiliate networks like ClickBank, CJ Affiliate, and ShareASale often display top-performing products by category, which helps identify what’s trending. Second, tools like Google Trends and Exploding Topics show rising interest in certain search queries and niches. Third, industry blogs and forums such as Neil Patel’s blog, Affilorama, or Reddit's r/affiliate_marketing provide discussions and expert insights into emerging trends. Lastly, platforms like YouTube and TikTok reveal consumer interests through viral content, which can signal profitable niches early.