NOTE: This is a large file, 8 mb in size! The Community Review System (CRS) of the Digital Library for Earth System Education (DLESE) is intended to help educators seeking high-quality digital resources and resource creators who are seeking recognition for their resources. This article describes how CRS gathers web-based feedback from educators and learners who have used DLESE educational resources, plus specialist reviews by science and pedagogy experts. This information is used to identify exemplary resources to be showcased in the DLESE Reviewed Collection. Detailed, but anonymous, feedback is provided to the resource creator to encourage improvement of the resource. Educational levels: Graduate or professional, Graduate or professional