This report was produced for the "EAGER: Secure Research Impact Metric Data Exchange: Data Supply Chain" project funded by The National Science Foundation. It documents key stakeholders, data intermediaries, standards and infrastructures related to journal article and dataset usage and impact analysis. Gaps and opportunities for distribution supply chains are identified alongside visualizations of the usage and impact data flows for open data and journals. This report is based on information collected through semi-structured interviews with 25 senior stakeholder leaders representative of the supply chain. Preliminary report findings were made available for comment from July - August 2024. Feedback is incorporated into this final version. This material is based upon work supported by the National Science Foundation under Grant Numbers #233587. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.