Talking to the Twitter trolls and those who study them

The debate over internet "trolls" - those who use their social media accounts to abuse others - erupted after feminist campaigner Caroline Criado-Perez was bombarded with abuse via Twitter after successfully campaigning to have author Jane Austen depicted on the new £10 note. via Pocket http://www.bbc.co.uk/news/technology-23516704#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa