Explore and learn English grammar with contrastive examples, contexts, pictures, diagrams, grammar descriptions, interactive quizzes, editing exercises.

Source: Grammar-Quizzes: Practice on Points of English Grammar (ESL/EFL)

This website is packed with explanations and controlled practice quizzes on English grammar. The main sections are clauses, noun phrases, verb phrases, adverbials and connectors. Each one of these sections contains explanations, lots of examples, common errors and practice.

The site is clearly layed out and navigation is easy, however the text is quite small and after a while becomes quite hard to focus on. The site becomes a bit boring after a while and lacks any real visual stimulus. This is not a site I would like to spend much time on.