Extension educators are increasingly using online resources in their program design and delivery. Usability testing is essential for ensuring that these resources are relevant and useful to learners. On the basis of our experiences with iteratively developing products using a testing service called UserTesting, we promote the use of fee-based online usability testing services as an easy and efficient method for improving online resources. We present steps for conducting usability testing and recommendations for best practices. This approach has implications for Extension educators, administrators, and program evaluators who design and evaluate educational programming that involves web or online resources.