FIS vocabulary site	Learn the words you need for your subject tests, and many useful general words too!
Picture vocabulary 1	Match the words and pictures - for beginners!
Picture vocabulary 2	The Internet Picture Dictionary - basic vocabulary with various quizzes
Basic vocabulary	Basic English picture wordlist from Wikipedia. Each picture links to information about that word.
Idioms 1 Idioms 2	These pages will teach you some new idioms - this is one of the hardest aspects of learning English!
Phrasal Verbs	Phrasal verbs are a most important aspect of English vocabulary - learn some new ones in these pages.
Common errors in English	A list of the words that even many native speakers get mixed up.
The Compleat Lexical Tutor	Lots of interesting stuff about vocabulary, including various online tests.
Academic Vocabulary
Word Lists	Simple English Wikipedia's version of the Academic Word List by Averil Coxhead. Highly recommended for ESL students.
Academic vocabulary quizzes 1	Gap filling exercises based on the Academic Word List.
Academic vocabulary quizzes 2	Exercises from the Academic English Cafe.
Academic vocabulary quizzes 3	Exercises from the ESLGold website.