Frontmatter -- Acknowledgements -- Table of contents -- List of contributors -- Advancing usage-based approaches to L2 studies -- Part I: Perspectives on usage in L2 learning and teaching -- Multidimensional SLA -- Cognitive and Social Aspects of Learning from Usage -- Designing for Language Learning in the Wild: Creating social infrastructures for second language learning -- Part II: The role of frequency and exposure in L2 learning -- Structural priming and the acquisition of novel form-meaning mappings -- Input and language competence in early-start foreign language classrooms -- Online informal learning of English: frequency effects in the uptake of chunks of language from participation in web-based activities -- Part III: Development of L2 interactional and constructional competence -- Long-term development in an instructed adult L2 learner: Usage-based and complexity theory applied -- On the development of motion constructions in four learners of L2 English -- The development of L2 interactional competence: evidence from turn-taking organization, sequence organization, repair organization and preference organization -- Part IV: Usage-based L2 pedagogy -- "I told you": Storytelling development of a Japanese learning English as a Second Language -- A Dynamic Usage-based Approach to Second Language Teaching -- L1, quantity of exposure to L2, and reading disability as factors in L2 literacy skills -- Part V: Synthesis -- Usage-based SLA: A Research Habitus Whose Time Has Come -- Subject index