http://epetitions.direct.gov.uk/petitions/48628
http://leap-lrc.blogspot.co.uk/2013/05/we-are-light-years-away-from-days-of.html
http://www.guardian.co.uk/business/2013/may/18/ed-miliband-pledge-tax-avoidance
http://www.guardian.co.uk/world/2013/mar/16/activist-shocked-conviction-cameron-protest
http://www.bbc.co.uk/news/business-22569870
http://www.guardian.co.uk/technology/2013/may/17/private-firms-data-hospital-patients?CMP=twt_gu