The Observatory of utilisation of digital educational material  allows searching for statistical data on the use and exploitation of: 

• the Open Educational Resources (OERs) for  primary and secondary education that  are hosted in the "Photodentro" digital repositories
• the digital versions of school books that are hosted in the  "Interactive School Books" digital library (e-books.edu.gr)
• the  collections of  digital educational material found in the "Photodentro" National Aggregator of Educational Material  
• the "e-me" digital educational platform for pupils  and teachers