This article explores the role that Web 2.0 technologies can play in enhancing languagelearning development in a blended world. It will argue that technologies are not enough ontheir own to make a difference, but that teachers bring a particular understanding of languageand the needs of their learners to the creation of suitable activities. It will show that the use oftechnologies is also changing our understanding of the profession of language education andthat sociocultural theory can help us understand why this is occurring. Blended learning as atype of classroom activity will be explored showing how different definitions may beinterpreted in the classroom context. The types of blended activities that can be used areillustrated through three vignettes.