As we know, the "Like" button is a rather blunt dopamine signal. It would be great to have more options that provide greater nuance in the social learning engagement space. LinkedIn could provide a model. Better still, could Open Learning provide a range of options that could be customised by course owners? The Like option works as a top level signal but more options would improve learner and facilitator experience. This should be an easy fix for the OL devs :)