From Web to Social Web: Discovering and Deploying User and Content Profiles: Workshop on Web Mining, WebMine 2006, Berlin, Germany, September 18, 2006 (Lecture Notes in Computer Science, 4737) Bettina Berendt (editor), Andreas Hotho (editor), Dunja Mladenic (editor), Giovanni Semeraro (editor) 3540749500,9783540749509