| Biodiversity | kstocks | 2 | Biodiversity semantic and interoperability topics | Invite only |
| CICORE Vocabulary Development | graybeal | 5 | Task to develop interoperable vocabulary for CICORE | Request membership |
| Collaborative Ocean Group (COG) | barrytao | 5 | Oceans2025 initiative to build a semantic web infrastructure for marine scientists | Join |
| Community Presence | carynn | 2 | MMI Members in the community, representing the activities, projects, and collected wisdom of the Marine Metadata Interoperability Project | Join |
| Community Updates Team | carynn | 3 | Marine Metadata Journalists - Finding and publishing information about items of community interest | Request membership |
| DIGARCH | hellyj | 1 | The DIGARCH interoperability framework is the basis for a federated, multi-institutional data network for scalable digital archiving. | Closed |
| DIVE Team | carynn | 19 | Short-term, focused research in areas of need to the marine sciences community | Request membership |
| Environmental Observatories | graybeal | 1 | Environmental Observatories: supporting collaborations in all facets of data management for the national environmental observatories. | Closed |
| Expedition Metadata | arko | 30 | Metadata about expeditions (ship cruises) | Join |
| Guides Team | kstocks | 15 | Guides Team: Developing Metadata Understanding | Request membership |
| Gulf of Maine Ocean Data Partnership | aball | 1 | GoMODP: to promote and coordinate the sharing, linking, electronic dissemination, and use of data on the Gulf of Maine region. | Closed |
| Image Metadata Specification for CenSeam | lonny | 15 | The CenSeam Image Metadata Project | Request membership |
| IOOS DMAC | jbosch | 1 | IOOS Data Management and Communication | Closed |
| IOOS Observation Registry Project | pederson21 | 1 | The registry is a database that defines the operational status and distribution of in situ ocean observation activity among non federal participants. | Closed |
| ISWG Standards Taxonomy | graybeal | 1 | ISWG Standards Taxonomy is aiming to categorize the types of standards used in earth observations. | Closed |
| Meta-T | derricksnowden | 3 | The Water Temperature metadata pilot project is aiming to provide an international standardization framework for collecting SST and water temperature. | Closed |
| MMI Project Management | graybeal | 2 | Information about coordination of the MMI project itself. | Request membership |
| MMI Workshop 2008 | graybeal | 15 | Planning for 2008 MMI Workshops | Request membership |
| Ontologies Team | graybeal | 53 | MMI and community members addressing ontology issues. | Join |
| Ontology for Devices | graybeal | 61 | A project to develop one or more device ontologies. | Join |
| Ontology for Platforms | graybeal | 53 | Project to develop an ontolog of science observing platforms | Join |
| OOI CI | graybeal | 1 | OOI Cyberinfrastructure Conceptual Architecture Committee | Closed |
| OOSTethys Team | luisBer | 8 | OOSTethys is a provider-to-user data systems framework, using interoperable standards, enabling discovery and use of data. | Closed |
| Resource Selection | carynn | 9 | Creating meaningful criteria for characterization and evaluation of resources, including standards and vocabularies | Request membership |
| Science Advisory Panel | graybeal | 2 | Science Advisory Panel | Closed |
| Science Training | swatson | 1 | Science Training | Closed |
| Steering Committee | graybeal | 21 | The Steering Committee for the MMI project (provides project direction). | Invite only |
| Strategic Planning | swatson | 2 | Strategic planning for the MMI project. | Request membership |
| Technical Advisory Panel | graybeal | 14 | Senior technical members of the scientific data management community advising the MMI project. | Closed |
| Technical Teams | graybeal | 62 | Team of technical contributors to MMI project | Join |
| Units of Measure Mapping | luisBer | 15 | Units of Measure Mapping | Join |
| UNOLS RVTEC | graybeal | 1 | UNOLS RVTEC: a committee focused on better planning and more successful execution of scientific cruises. | Closed |
| Vocabulary Development | carueda | 15 | Vocabulary Development | Request membership |
| Web Team | ngalbraith | 8 | Contributors to MMI web development activities. | Request membership |
| Website Transition Team | ngalbraith | 23 | Project to move MMI website | Invite only |
| Workshop Templates | swatson | 1 | Development of templates enabling the community to host vocabulary mapping workshops. | Request membership |
| Workshops Team | swatson | 1 | General work applicable to MMI workshops (teams are sometimes created for each workshop) | Closed |
