Share 'Twitter - a powerful tool for social change'

About a month ago I joined Twitter (after some strong encouragement from Joshua!). I was apprehensive, as I didn't want another distraction in my day and thought it would be filled with useless 'tweets'. I gave it 30 days to prove itself. It took about 10. Now I'm astounded. It's my portal to real and important news that we don't hear about in NZ through our media. It's also a constant source of…