In this chapter, the author discusses the role of Massive Open Online Courses (MOOCs) in the field of foreign language education. It examines the relationship between MOOCs and self-regulated learning, and goes on to explore the repurposing of content-based MOOCs as complementary materials to foster students' self-regulated behaviour and practice of the target language inside and out the language classroom. A research project that has explored self-regulated language learning in a blended context with content-based MOOCs is also discussed here, with particular reference to the self-regulatory strategies employed by a group of language students at University level. A series of recommendations that supports the use of content-based MOOCs as part of face-to-face language courses are provided at the end of this chapter