Photo albums on the OUT e.V. server now automatically create an RSS feed of new images, so these can be subscribed to in a news aggregator like "Radio Userland". This way you can easily keep track of where new photos have been added, even with photo albums.
The XML URL for the RSS feed can also be extended with a second parameter "&count=NN" to select the number of current images. The default is 10, which should be sufficient. I may make some optimizations to the server software later to keep transfers and CPU load from getting too high.
A few image albums can be seen in my list of subscribed news feeds on the right (e.g. Leicaesk, hugo.f-2.org, the drf image critique pages).