SAP Customer Engagement Initiative projects are now on influence.sap.com and open for customer registration until July 8.
Topics categorization as per few area and also complete list is as below.
A short documentation on how to find and register for a CEI projects can be found on influence.sap.com. Please note that the registration is open to valid S-Users and Ariba Customers only.
All of these blog posts can be found via the SAP Customer Engagement Initiative tag as available.