id	domain	url
crl-16568	www.aei.org	https://www.aei.org/publication/the-college-textbook-bubble-and-how-theopen-educational-resources-movement-is-going-up-against-the-textbook-cartel
crl-16568	southernlibrarianship.icaap.org	http://southernlibrarianship.icaap.org/content
crl-16568	www.aei.org	https://www.aei.org/publication/the-college-textbook-bubble-and-how-the-open-educationalresources-movement-is-going-up-against-the-textbook-cartel
crl-16568	southernlibrarianship.icaap.org	http://southernlibrarianship.icaap.org/content/v07n02/pollitz
crl-16568	ww2.kqed.org	http://ww2.kqed.org/mindshift/2012/09/14/why-college-students-still-prefer-printover-e-books