International organization specializing in the field of exploration and applied geochemistry (past publisher of Journal of Geochemical Exploration; current publisher of Geochemistry: Exploration, Environment, Analysis). Site has membership and journal information, event schedules, and association information.

An international association based in The Hague, the EAOG publishes the academic journal Organic Geochemistry. Membership information, schedules of meetings, and a newsletter archive.

Promotes international cooperation in the mineralogical sciences by organizing meetings and field excursions and by sponsoring publications. Provides lists of individual national member groups, working research groups, council members, and bylaws.

An international non-profit organization of meteorite and small solar system body researchers. Membership information, list of upcoming meetings, newsletters, and links to members and related organizations.