Reading

http://learnenglish.britishcouncil.org/en/

http://www.voanews.com/

http://web2.uvcs.uvic.ca/elc/studyzone/

http://www.uefap.com/

http://www.rong-chang.com/

Listening

http://lingual.net/game/listening-master/

http://www.esl-lab.com/

http://elllo.org/

Writing

http://www.meredithsuewillis.com/writingexercises.html

http://esl.fis.edu/learners/writing/index.htm

Vocabulary

http://www.englishvocabularyexercises.com/vocab-categories.htm

http://lingual.net/game/english-wizz/

http://lingual.net/game/idiom-power/

All Skills

http://www.esldesk.com/

http://www.time4english.com/aamain/lounge/lounge.asp

http://chagall-col.spip.ac-rouen.fr/spip.php?rubrique67 https://www.myenglishpages.com/site_php_files/reading-ernest-hemingway-biography.php

Dictionary

http://dictionary.cambridge.org/

http://oxforddictionaries.com/

http://thesaurus.com/