1. Introduction; 2. Part I: Exploring variation in the use of linguistic features; 3. 1. Cross-disciplinary comparisons of hedging: Some findings from the Michigan Corpus of Academic Spoken English (by Poos, Deanna); 4. 2. Would as a hedging device in an Irish context: An intra-varietal comparison of institutionalised spoken interaction (by Farr, Fiona); 5. 3. Good listenership made plain: British and American non-minimal response tokens in everyday conversation (by McCarthy, Michael); 6. 4. Variation in the distribution of modal verbs in the British National Corpus (by Kennedy, Graeme); 7. 5. Strong modality and negation in Russian (by Haan, Ferdinand de); 8. 6. Formulaic language in English academic writing: A corpus-based study of the formal and functional variation of a lexical phrase in different academic disciplines (by Oakey, David); 9. 7. Lexical bundles in Freshman composition (by Cortes, Viviana); 10. 8. Pseudo-Titles in the press genre of various components of the International Corpus of English (by Meyer, Charles); 11. 9. Pattern grammar, language teaching, and linguistic variation: Applications of a corpus-driven grammar (by Hunston, Susan); 12. Part II: Exploring dialect or register variation; 13. 10. Syntactic features of Indian English: An examination of written Indian English (by Rogers, Chandrika K.); 14. 11. Variation in academic lectures: Interactivity and level of instruction (by Csomay, Eniko); 15. Part III: Exploring historical variation; 16. 12. The textual resolution of structural ambiguity in eighteenth-century English: A corpus linguistic study of patterns of negation (by Fitzmaurice, Susan); 17. 13. Investigating register variation in nineteenth-century English: A multi-dimensional comparison (by Geisler, Christer); 18. Index