Hello

Please check my profile. I believe you will find some interesting contributions in your educational area. https://www.researchgate.net/profile/Nikolaos_Pellas

With kind regards

NP

Check this book:

https://myweps.com/moodle/pluginfile.php/14187/mod_resource/content/2/Handbook_Recommender_Systems_for_Learning.pdf

I suggest that you read about ELARS recommender system:

http://link.springer.com/chapter/10.1007/978-3-319-07698-0_4

http://link.springer.com/chapter/10.1007/978-3-319-09879-1_14

Kind regards,

Martina 

thanks for your help

I am also interested, but also in the non web-based forms of collaborative learning. That is the focus of my Self-study focus. So am appreciating the responses given, thank you.