Piyanuch Klaisubun Masahiro Honma Phichit Kajondecha Takashi Ishikawa Awareness Information for Collaborative Information Gathering in Social Bookmarking Service. 106-118 2008 ICCNSM http://dx.doi.org/10.1007/978-3-642-02276-0_12 conf/iccnsm/2008 db/conf/iccnsm/iccnsm2008.html#KlaisubunHKI08