MoodViews: Tracking and Searching Mood-Annotated Blog Posts. - Gilad Mishne; Krisztian Balog; Maarten de Rijke; Breyten Ernsting (ICWSM, 2007)

Language Modeling Approaches to Blog Postand Feed Finding. - Breyten Ernsting; Wouter Weerkamp; Maarten de Rijke (TREC, 2007)