Recently changed
Because we installed a SSL certificate on sittig.us, the (old) photos that were hosted on sittig.nl (no longer active as web server) were considered a security risk and hence were blocked.
The last few weeks we have been busy creating links to the new storage location of all pictures on the web site.
Spring 2017 will be published shortly, as an experiment as photo gallery.
All comments and remarks about missing content and links that don't work, are most welcome!