Information technologies and the hypertext principle underlying the World Wide Web/relational databases are ideally suited to support a constructivist approach to grammar acquisition. The hypertext principle enables the learner to navigate flexibly in a multi-dimensional learning space in which grammar points and exercises are relevantly interlinked. Interlinking and cross-referencing of grammar points, exercises and accompanying meta-language will not only help structure and enhance the learner’s acquisition process, but also foster depth of processing which is important for retention and sustainable learning to take place. Furthermore, the layout and graphics of Grammar Explorer are pedagogically tailored with a view to supporting autonomous learning; among the main features are colour coding of lexis and central concepts as well as horizontal and vertical structuring of material.