The document discusses lessons learned from evaluating eXtension Communities of Practice (CoPs). It provides examples of how different CoPs have evaluated the usefulness and impact of their online resources. Surveys found that webinars, fact sheets, and learning modules increased knowledge and influenced practices. Metrics like website traffic, video views, and newsletter readership demonstrated engagement with online content. Moving forward, the document recommends using social media to further engage clients and evaluating social media applications both quantitatively and qualitatively.