Newbury House Dictionary

This exceptional dictionary released by Heinle (a leading provider of ELT materials) presents to us over 40,000 entries with their respective meanings including sentences and idioms. It covers American English usage. The definitions are simple and easy to understand. If you are looking up for some verbs, you can also see the phrasal verbs related to it. You didn't figure out what that word means, Heinle´s dictionary will give you a hand. Link

Oxford - English File online

This is an excellent support material from Oxford University Press. You can choose the level you want to practice. It will display many options to study: grammar, pronunciation, games, textbuilder and much more. Outstanding interactive resources. Don't waste your time, access your file here.

Link (British English)

Link (American English)

Black Cat Poems

That's the right place if you want to read some of the best english poets. This website is "an online library of poems categorized by subject and poet". There you can find writers like William Blake, Emily Dickinson, T. S. Eliot, D. H. Lawrence, Edgar Allan Poe and much more. By the way, Edgar Allan Poe's short story "The Black Cat" was inspired by his own pet cat, Catarina. Enjoy english poetry and be inspired by the cat! Link

VocabTrainer - Objective FCE

This vocabulary trainer was specifically created by Cambridge to provide us practicing on the vocabulary from  FCE (First Certificate in English). This upper-intermediate level exam requires a wide-range vocabulary. So if you have FCE in mind, optimize your knowledge here. Find your feet and be successful! Link