摘要:Studies and research about second language acquisition (SLA) and Web 2.0 often regard how 2.0 tools (wikis, blogs, podcasts, etc.) are used to enhance and support language learning. However, little has been said on the theoretical side about how and why this adoption might be successful. This work, therefore, takes a theoretical approach to explaining why Web 2.0 should be adopted as a valid support to SLA, based on analogies between the nature of language and that of the Web and second language learning and software development. I demonstrate how an appropriate integration of Web 2.0 tools in language learning could truly offer a new approach to the whole discipline based on open practices, enriching the learning experience and supporting everyday teaching practice.