Through this Dear Colleague Letter (DCL), the National Science Foundation’s (NSF) Office of Advanced Cyberinfrastructure (OAC) announces its intention to support initial exploratory activities toward the creation of social and technical infrastructure solutions that further NSF’s commitment to public access. These solutions are a means to accelerate the dissemination and use of fundamental research results in the form of data that will advance the frontiers of knowledge and help sustain the Nation’s prosperity well into the future. Specifically, this DCL encourages two types of funding requests: (1) proposals for Conferences (i.e., community workshops and other events) that are designed to bring together stakeholders to explore opportunities to converge on innovative solutions to advancing public access; and (2) proposals for Early-Concept Grants for Exploratory Research (EAGER) for high-risk/high-reward innovative concepts and pilot projects that yield new fundamental research discoveries from existing NSF-funded data or that ultimately result in deployment of ambitious, sustainable socio-technical infrastructure resources and capabilities that enhance and accelerate new discoveries from existing NSF-funded data. The deadline for submission of Conference and EAGER proposals proposal submission date is May 23, 2018.