Filippo Trevisan and I have had our paper ‘Ethical Dilemmas in Researching Social Media Campaigns on Sensitive Personal Issues: Lessons from the Study of British Disability Dissent Networks’ published in Information, Communication & Society.
http://www.tandfonline.com/doi/abs/10.1080/1369118X.2014.889188#.U1TzlF788_s
I will upload a preprint copy of the paper to the Publications section of this site in due course.