List of Islands in the Baltic Sea - Wikipedia
- A top-10 list of islands by size and population.
- http://en.wikipedia.org/wiki/List_of_islands_in_the_Baltic_Sea

Baltic Sea Seven Island Co-operation Network
- A network of the seven largest islands in the Baltic Sea. Their organization, projects, and information about each of the islands.
- http://b7.elkdata.ee/

B7, Baltic Islands Network
- A co-operation of the 7 largest islands in the Baltic Sea, Bornholm (Denmark), Gotland (Sweden), Hiiumaa (Estonia), Rügen (Germany), Saaremaa (Estonia), Åland (Finland) and Öland (Sweden).
- http://www.b7.org/