Links to a selection of websites covering sponges.

Ulster Museum collectionSearchable sponge collection database for the Ulster Museum
Sponge collectionsListings of sponge collections in museums (Shirley Stone)
World Porifera DatabaseWorld list of extant sponges
Sponge genetree serverThe Sponge Genetree Server aims to summarize genetic information on sponges that has been accumulated in recent years
Sponge guide Identification guide to Caribbean sponges
Porifera mailing list archives Archive of messages to the Porifera mailing list