Hello all,
Just to add more examples of Omeka S sites in production, here are couple of sites we (University of Jyväskylä) have recently published. Our primary usecase is to use Omeka S as an easier-to-modify frontend to our DSpace-based institutional repository as customizing looks of DSpace is outright painful
First two sites are populated directly from our repository via Omeka S REST API
https://expo.oscapps.jyu.fi/s/ecological-awareness-in-chinese-contemporary-art
https://expo.oscapps.jyu.fi/s/pedaforum2016/page/pedaforum
Our third site, called Vanhakartta (Old Map) is a showcase for old maps mainly from the geographical area of Finland and accompanying content. The previous version of the site was built using custom Plone-based CMS and the codebase was getting old (10 years) so we decided to rebuild the site completely using Omeka S.
The content is mainly in Finnish.
https://expo.oscapps.jyu.fi/s/vanhakartta/page/sanson-family-as-cartographers-of-finland
Many thanks to Omeka S development team and independent devs around the world for your amazing work!