Jaehui Park Tomohiro Fukuhara Ikki Ohmukai Hideaki Takeda Sang-goo Lee Web content summarization using social bookmarks: a new approach for social summarization. 103-110 2008 WIDM http://doi.acm.org/10.1145/1458502.1458519 conf/widm/2008 db/conf/widm/widm2008.html#ParkFOTL08