1. Why Dissolved Organics Matter: Take 3 - The Messiness of Nature 2. Chemical Characterization and Cycling of Dissolved Organic Matter 3. Metabolites and Small Molecules 4. Carbon Isotopic Constraints on the Biogeochemistry of Marine DOM 5. Tracing DOM in the Ocean with UV-Visible Spectroscopy 6. DOM Remote Sensing 7. DOM Production, Removal, and Transformation Processes in Marine Systems 8. Sediment Pore Waters 9. DOM in Hydrothermal Systems 10. Dissolved Organic Nitrogen in the Ocean 11. Dynamics of Dissolved Organic Phosphorus 12. Understanding the Contribution of Organic Metal-Binding Ligands to DOM 13. Marine Photochemistry of Organic Matter: Processes and Impacts 15. Reasons Behind the Long-Term Stability of Dissolved Organic Matter 16. Riverine Dissolved Organic Matter 17. DOM in the Arctic Ocean 18. DOC in the South China Sea 19. The volatile organic carbon component of DOC 20. Dynamics of Dissolved Organic Carbon in the Global Ocean 21. Modeling DOM from the Molecular to Global Scales