Contents Finding Your Way through Blogspace: Using Semantics for Cross-Domain Blog Analysis / 1 Bettina Berendt and Roberto Navigli An Analysis of the Effectiveness of Tagging in Blogs / 9 Christopher H. Brooks and Nancy Montanez An Exploration of Observable Features Related to Blogger Age / 15 John D. Burger and John C. Henderson Opinion Analysis in Document Databases / 21 Carmine Cesarano, Antonio Picariello, Diego Reforgiato, Amelia Sagoff, V. S. Subrahmanian, and Bonnie Dorr Using Verbs and Adjectives to Automatically Classify Blog Sentiment / 27 Paula Chesley, Bruce Vincent, Li Xu, and Rohini K. Srihari Highlights from 12 Months of Blogs / 30 Christine Doran, John Griffith, and John Henderson Users' Behavioral Analysis on Weblogs / 34 Tadanobu Furukawa, Yutaka Matsuo, Tomofumi Matsuzawa, Masayuki Takeda, and Koki Uchiyama Mining the Blogosphere for Contributors' Sentiments / 37 Boris Galitsky and Boris Kovalerchuk Distinguishing Affective States in Weblog Posts / 40 Michel Généreux and Roger Evans Indexing Weblogs One Post at a Time / 43 Natalie Glance How Do Blog Gardens Grow? Language Community Correlates with Network Diffusion and Adoption of Blogging Systems / 47 Lei Gu, Paul Johns, Thomas M. Lento, and Marc A. Smith Collaborative and Structural Recommendation of Friends using Weblog-based Social Network Analysis / 55 William H. Hsu, Andrew L. King, Martin S. R. Paradesi, Tejaswi Pydimarri, and Tim Weninger Opinion Feature Extraction Using Class Sequential Rules / 61 Minqing Hu and Bing Liu 24 Hours in the Blogosphere / 67 Matthew Hurst v Temporal Text Mining / 73 Matthew Hurst Automatically Linking News Articles to Blog Entries / 78 Daisuke Ikeda, Toshiaki Fujiki, and Manabu Okumura Extracting Navigational Information from Link Structure in Blogoshere / 83 Takashi Ishikawa and Yuu Ishikawa Opinion Mining on the Web by Extracting Subject-Aspect-Evaluation Relations / 86 Nozomi Kobayashi, Ryu Iida, Kentaro Inui, and Yuji Matsumoto SVMs for the Blogosphere: Blog Identification and Splog Detection / 92 Pranam Kolari, Tim Finin, and Anupam Joshi Opinion Extraction, Summarization and Tracking in News and Blog Corpora / 100 Lun-Wei Ku, Yu-Ting Liang, and Hsin-Hsi Chen Mining Community Structure of Named Entities from Web Pages and Blogs / 108 Xin Li, Bing Liu, and Philip S. Yu Mapping the Structure of the American Blogosphere / 115 Jia Lin, Alex Halavis, and Bin Zhang Newspapers vs. Blogs: Who Gets the Scoop? / 117 Levon Lloyd, Prachi Kaulgud, and Steven Skiena Mining Web Text for Brand Associations / 125 Robert Malouf, Bradley Davidson, and Ashli Sherman Investment and Attention in the Weblog Community / 128 Cameron A. Marlow Searching Sentiments in Blogs / 136 Hongcheng Mi and I-Heng Mei A Corpus-based Approach to Finding Happiness / 139 Rada Mihalcea and Hugo Liu Capturing Global Mood Levels using Blog Posts / 145 Gilad Mishne and Maarten de Rijke MoodViews: Tools for Blog Mood Analysis / 153 Gilad Mishne and Maarten de Rijke Predicting Movie Sales from Blogger Sentiment / 155 Gilad Mishne and Natalie Glance vi A Preliminary Investigation into Sentiment Analysis of Informal Political Discourse / 159 Tony Mullen and Robert Malouf The Identity of Bloggers: Openness and Gender in Personal Weblogs / 163 S. Nowson and J. Oberlander A Weblog Grounded to the Real World / 168 Kosuke Numa, Hideaki Takeda, Hiroki Uematsu, Takuichi Nishimura, Yutaka Matsuo, Masahiro Hamasaki, Noriyuki Fujimura, Keisuke Ishida, Tom Hope, Yoshiyuki Nakamura, Satoshi Fujiyoshi, Kazuya Sakamoto, Hiroshi Nagata, Osamu Nakagawa, and Eiji Shinbori Towards Analysis Tools for a Multilingual Blogsphere / 176 Douglas W. Oard Consensus and Opinions; Quality and Churn / 179 Fredrik Olsson, Jussi Karlgren, Preben Hansen, Martin Svensson, Rickard Cöster, and Magnus Sahlgren Domain Specific Affective Classification of Documents / 181 Sara Owsley, Sanjay Sood, and Kristian J. Hammond Automated Blog Classification: Challenges and Pitfalls / 184 Hong Qu, Andrea La Pietra, and Sarah Poon Assessing Credibility of Weblogs / 187 Victoria L. Rubin and Elizabeth D. Liddy Effects of Age and Gender on Blogging / 191 Jonathan Schler, Moshe Koppel, Shlomo Argamon, and James Pennebaker Enabling Management Oversight in Corporate Blog Space / 198 Dawei Song, Peter Bruza, Robert McArthur, and Tim Mansfield Analysing Iconic Consumer Brand Weblogs / 206 Suresh Sood, Arch G. Woodside, and Ken Miller Are Blogs Edited? A Linguistic Survey of Italian Blogs Using Search Engines / 211 Mirko Tavosanis Weblogs as Market Indicators: Tracking Reactions to Issues and Events / 214 Richard Tong and Mark Snuffin Semantic Blogging Agents: Weblogs and Personalization in the Semantic Web / 217 Wolfgang Woerndl, Georg Groh, and Karlheinz Toni vii Important Weblog Identification and Hot Story Summarization / 221 Yi Wu and Belle L. Tseng Gender Classification of Weblog Authors / 228 Xiang Yan and Ling Yan Identifying Bloggers' Residential Areas / 231 Norihito Yasuda, Tsutomu Hirao, Jun Suzuki, and Hideki Isozaki On the Summarization of Dynamically Introduced Information: Online Discussions and Blogs / 237 Liang Zhou and Eduard Hovy viii