- BBC Political Opinion Poll Tracker: http://bbc.in/La7M6i
- ComRes Polling: http://www.comres.co.uk/ Twitter: @Andrew_ComRes
- Progressive Polling: Twitter: @progpoll
- UK Polling Report - Survey and Polling News: http://ukpollingreport.co.uk/
- YouGov Polling organisation: http://yougov.co.uk/publicopinion/, Twitter: @YouGov