This volume grew out of a workshop on formal and experimental approaches to discourse particles and modal adverbs, held at the European Summer School in Logic, Language and Information (ESSLLI) 2008 in Hamburg. The workshop has been the third in a series of workshops starting at ESSLLI 2003 in Vienna and continuing in Barcelona in 2005. Since 2003, formal and experimental approaches to particles have become a flourishing area of research. For the right reason: particles provide challenges for the formal and experimental methods currently available, both in the kind of content they express and in the way they (seem to) do so. The papers in this volume provide many examples. INHALT: Henk Zeevat& Hans-Christian Schmitz: Foreword;Noah Constant, Christopher Davis, Christopher Potts& Florian Schwarz: The pragmatics of expressive content: Evidence from large corpora; Bernhard Fisseni: Überhaupt und sowieso and überhaupt en sowiesoDaniel Gutzmann: Hybrid Semantics for Modal Particles; Lotte Hogeweg: The Dutch particle wel as a denial of a negation; Elena Karagjosova: A unified DRT-based account of accented and unaccented middle field doch; Anna Lobanova: Expressiveness of the connective a: a unifying approach of its incompatibility and mirativity functions; Sumiyo Nishiguchi: Presupposition Accommodation of Discourse-Initial Too; Gerhard Schaden& Lucia Tovena: Sharpening the adequacy of a characterisation; Sonja Thoma: To p or to ¬p The Bavarian Particle fei as Polarity Discourse Particle; Carla Umbach& Cornelia Ebert: German demonstrative so intensifying and hedging effects; Lavi Wolf& Ariel Cohen: Modal Adverbs as Negotiation Chips Henk Zeevat Only as a Mirative Particle