Fantastic website, as you’d expect from the BBC, offering resources including videos, quizzes, vocabulary practice, idioms, crosswords, and much more. Best suited for intermediate students and above.
Excellent resources for kids, teenagers and adults including specialist material for university and business students
An extensive array of activities to practice spelling, grammar, pronunciation, and listening.
Lots of resources for official exam preparation, but also business English, English for Academic purposes and even interactive readers.
Website which specialises in official exam preparation (Cambridge, TOEFL, EOI) with timed exam exercises.
German website which offers a comprehensive selection of English grammar and vocabulary practice activities.
A German magazine for business English students. The magazine requires a subscription, but there are a number of free articles and activities.