The poll ard, is reported by the Telegraph, but was actually conducted by YouGov:

"Founded in May 2000, YouGov is a professional market research agency pioneering the use of the Internet and information technology to collect higher-quality in-depth data for market research and public consultation.

YouGov has pro-actively recruited respondents from all ages, socio economic groups and regions of Britain. The sample for each survey is carefully selected and controlled so that it is representative of the adult population as a whole - or the specific audience that the survey is designed to measure."