This paper describes the development and initial implementation of the Compendium of D&I Catalogs, a tool created by a Clinical and Translational Science Awards (CTSA) consortium working group to streamline navigation of the proliferating online resources, catalogs and interactive tools designed to guide application of dissemination and implementation (D&I) science. The Compendium is a curated, dynamically-updated list of 35 D&I resource catalogs organized into eight categories: comprehensive resources; frameworks, theories, and models; methods and measures; funding; practitioner resources; training; CTSA infrastructure; health equity. Eight CTSA hubs volunteered to serve as “early adopters” for the tool and completed an evaluation of its initial implementation. Among these “early adopters,” half had implemented the Compendium within their websites, describing the web implementation process as “easy.” Remaining “early adopter” respondents cited institutional web development capacity concerns and competing priorities as reasons for delayed implementation. All respondents valued the Compendium’s dynamic updates. Among implementing sites, roughly two-thirds directly embedded the Compendium into their institutional websites, with the others providing a link to the Compendium. For CTSAs striving to meet the rising demand for D&I expertise and resources, the Compendium of D&I Catalogs represents a simple, low-cost tool to enhance accessibility of D&I capacity-building resources.