Island Search
Directory of websites relating to the world's islands.
http://www.island-search.com/

Islands Info
Information and links relating to islands dotted all over the globe.
http://www.islandsinfo.com/

Islands.com
Online travel planner and guide to exotic islands around the world.
http://www.islands.com/
http://www.islandsmag.com/

The World of Islands
A-Z of islands. You can search for them by geographic location or alphabetical order.
http://www.world-of-islands.com/

UN System-Wide Earthwatch Coordination
Geographic and environmental information on the world's islands.
http://www.unep.ch/islands/isldir.htm