Better teaching: Guide to using Twitter

Why join twitter?    
Why joining twitter should be an essential part of your cpd. From @AppEducationFox on the

Des O'Neill (@Age_Matter)s expounds on the value of twitter for health professionals

Link Writing in the health suppliment of The Irish Times. The argument is almost identical in relation to using it in education.
Digitally Speaking / Why Teachers Should Try Twitter:
A teacher's experience of how twitter has helped him
It started with trying to come to terms with differentiation
The Complete Guide To Twitter Hashtags For Education From
I am a science teacher, I have joined twitter, now what? Short introduction. From
4 Simple Ways To Get Started Teaching With Twitter From
5 Steps to make Twitter your superpower A tad melodramatic, but you get the point.
Effective Ways to Engage other educators on Twitter. Poster
Another poster Similar to above
Poster summarising all you need to know about twitter For teachers
Similar to above This time a more detailed pdf document