Web Adam Jatowt 606-8501 E-mail: {yanbe,nakamura,adam,tanaka}@dl.kuis.kyoto-u.ac.jp Web Web Page PageRank 2 Web PageRank 2 Utilizing Social Bookmarks to Enhance Ranking in Web Search Yusuke Yanbe Satoshi Nakamura Adam Jatowt and Katsumi Tanaka Department of Social Informatics, Graduate School of Informatics, Kyoto University Yoshida-Honmachi, Sakyo, Kyoto 606-8501 Japan E-mail: {yanbe, nakamura, a