id	domain	url
crln-20880	www.ala.org	http://www.ala.org/acrl/guides
crln-20880	www.lib.umd.edu	http://www.lib.umd.edu
crln-20880	lcweb.loc.gov	http://lcweb.loc.gov/rr/digiref/
crln-20880	www.historyebook.org	www.historyebook.org/
crln-20880	www.ala.org	http://www.ala.org/acrl/guides
crln-20880	www.lib.umd.edu	http://www.lib.umd.edu
crln-20880	lcweb.loc.gov	http://lcweb.loc.gov/rr/digiref
crln-20880	www.historyebook.org	http://www.historyebook.org