Iraklis Varlamis Vasilis Vassalos Antonis Palaios Monitoring the evolution of interests in the blogosphere. 513-518 2008 ICDE Workshops http://dx.doi.org/10.1109/ICDEW.2008.4498371 conf/icde/2008w db/conf/icde/icdew2008.html#VarlamisVP08