Sadly, like the original version of this website, many of the links listed there have become defunct.
It is planned to develop a new set here, and the following provides an initial offering.
There is a growing amount of data being shared on Facebook. To access it, you need to have a Facebook account, Hext, search in Facebook for any of the pages listed below. Typically you will need to request access, but this is really on a formality (a way of keeping spammers at bay).
Friends of die K.u.K. Hriegsmarine (the Austro-Hungarian Navy)
A Nagy Háború a tengeren -The Great War at Sea 1914-18
The Great War at sea 1914-1919
All these groups/pages are rich in photographs.