id	domain	url
spir-9006	stateofthemedia.org	http://stateofthemedia.org/2012/overview-4/key-findings
spir-9006	www.politico.com	http://www.politico.com/advertising/online.html#audience
spir-9006	dx.doi.org	http://dx.doi.org/10.1017/s1049096509090052
spir-9006	stateofthemedia.org	http://stateofthemedia.org/2012/overview-4/key-findings
spir-9006	www.politico.com	http://www.politico.com/advertising/online.html#audience