This paper describes the interactive learning environment, Oslo Interactive English, developed at the University of Oslo in 2004/2005. Oslo Interactive English (OIE) offers a wide range of corpus-driven exercises suitable for undergraduate students of English. The exercises are divided into seven grammatical topics and there are four different exercise types, viz. multiple choice, gapfill, error correction and open. To do the exercises a corpus must be consulted. The main aims of OIE are to offer both on- and off-campus students an interactive learning environment and at the same time introduce them to the use of corpora as a language learning resource.