Twitter as CPD

Preparing some materials for a few forthcoming events this morning: the GA conference at the end of next week, a conference at the RGS-IBG and a CPD session at my own school in just over 2 weeks time.
There is a social media theme running through them, and I was reminded of this presentation by Jenny Ferreira from a few years ago, where she kindly referenced my blogs and twitter account as being of particular value for teachers to follow.