id	domain	url
el-251	www.duskin.com	http://www.duskin.com/takingsides
el-251	www.wadsworth.com	http://www.wadsworth.com/pubco/serv_opposing.html
el-251	www.ala.org	http://www.ala.org/ala/acrl/aboutacrl/acrlsections/collegel
el-251	aic.stanford.edu	http://aic.stanford.edu/about/index.html
el-251	www.loc.gov	http://www.loc.gov/preserv/pubscare.html
el-251	www.nps.gov	http://www.nps.gov/history/museum/publications/conserveogr
el-251	www.pbs.org	http://www.pbs.org/opb/historydetectives