Question keywords usually come from people who want to learn something, while product keywords often come from people ready to buy. For affiliate marketing, both have value, but they serve different roles. Question keywords can bring traffic and build trust by answering simple problems. Product keywords, like best or review, often lead closer to sales. A good approach is to mix both so the content guides readers step by step. This creates a natural flow from learning to buying. Which type gives better results over time?