[Pharo-users] real world pharo web application set ups

After reading reading "Enterprise Pharo a Web perspective", i am curious to learn more about current real world pharo web application set ups. any case studies or blue prints around? i am interested in application domain, system architecture, infrastructure (HW/OS/DB), performance goals (concurrent users, transactions, ...), system sizing, scalability strategies, .... everything which could important to convince "me" to select pharo as a platform for a saas solution ... Thanks, Volkert