id	domain	url
compass-151	ebiquity.umbc.edu	http://ebiquity.umbc.edu/paper/html/id/367/why-we-twitterunderstanding-microblogging-usage-andcommunities
compass-151	blogs.lse.ac.uk	http://blogs.lse.ac.uk/impactofsocialsciences/2011/09/29/twitter_
compass-151	blogs.lse.ac.uk	http://ebiquity.umbc.edu/paper/html/id/367/why-we-twitter-understanding-microblogging-usage-andhttp://ebiquity.umbc.edu/paper/html/id/367/why-we-twitter-understanding-microblogging-usage-andhttp://blogs.lse.ac.uk/impactofsocialsciences/2011/09/29/twitter_