UNEP - Heard Island
- Information about the Natural World Heritage Property of Heard Island includes location, history, physical description, cultural heritage and scientific research.
- http://www.unep-wcmc.org/protected_areas/data/wh/himi.html

Heard Island Expedition
- Documents the 1997 Cordell Expedition to the island. Includes an overview, route map, basic information, detailed planning documents, and team biographies.
- http://www.cordell.org/HI/

Heard Island Marine Reserve Management Plan
- Details all aspects of this plan. Includes a PDF version of the report.
- http://www.heardisland.aq/protection/management_plan/

Heard Island - Southern Indian Ocean
- General information about the location, discovery, geography, geology, climate, and culture of the island. Includes interactive map.
- http://www.btinternet.com/~sa_sa/heard_island/heard.html