This proceedings for the May 2008 conference includes a range of papers that provide a snap shot of leading research questions about computational models of argument. The papers primarily draw on philosophical issues about argumentation and the reasoning necessary to consider rhetorical issues arising in argumentation. Topics include algorithmic solutions associated with generating and judging consolation arguments, exchange of information associated with argumentation differences, tools for computational argumentation, arguments in programming, measures for persuasion dialogs in preliminary investigations, ontological foundations for scholarly debate mapping technology, formal dialogue games, the computational complexity of ideal semantics, requirements for reflective argument visualization tools, hybrid argumentation and its properties, preferences dialogs, critical questions for decision making processes, argument theory change in revisions, argument interchange formats, arguments from experience, and models of judicial context in argumentation frameworks. Annotation ©2008 Book News, Inc., Portland, OR (booknews.com)