I just enjoyed a half hour Twitter chat with colleagues across the country about differentiation and setting. Took away three great ideas. Then I realised there was a science one going on at the same time #asechat. PE, Maths and I am sure many others do the same. Questions for discussion are posted in advanced then, best if all, the whole chat is digested in Storify for you to read at your leisure.
Also check out and post to #pedagooFriday at they end of the week to share your teaching highlights!
Twitter = free, current, meaningful CPD not just celebrity stalking!