id	domain	url
crln-9531	nces.ed.gov	http://nces.ed.gov/pubsearch/pubsinfo.asp?pubid=2016006
crln-9531	www.commonsensemedia.org	https://www.commonsensemedia.org/research/technology-addiction-concern-controversy-and-finding-balance
crln-9531	nepc.colorado.edu	http://nepc.colorado.edu/publication/schoolhouse-commercialism-2015
crln-9531	www.pcgplus.com	www.pcgplus.com/wp-content