id	domain	url
hom-43	www.nature.com	http://www.nature.com/news/2007/070329/full/news070326-11.html#b3
hom-43	www.aip.org	http://www.aip.org/history/ohilist/5056.html
hom-43	www.ucar.edu	http://www.ucar.edu/multimedia/videos/2010/schneider_tonightshow77.mov