A large commentary on the approach to grammar teaching which has been adopted in the Secondary National Strategy (formerly the English strand of the KS3 Strategy, extending the primary-level National Literacy Strategy).
A large collection of pages full of basic grammar for secondary (Years 7-9) teachers of English, with some self-test exercises and links to the UK National Curriculum.
This isn’t yet completely restored, but I’m working on it (March 2016).
A collection of short (450-word) pieces about elementary grammar, called “The writer’s tool-kit”, which I co-wrote with Geoff Barton (a school teacher) for two years. They appeared every week (of term-time) in the Times Educational Supplement.