1 Table of Contents: “... on the Characteristics of the Long-term Web Forum Users Using Social Network Analysis -- Knowledge Exploration from...”

2 Table of Contents: “... in the Semantic Web -- A Survey on Proximity Measures for Social Networks -- Extending Search to Crowds...”

3 “... on social networks and collaboration, tagging, personalization and personal systems, search, Web modeling...”

4 “..., ranging from business management software and customer relationship systems to social networks and mobile...”