Listening :

• www.englishlistening.com
• www.esl-lab.com
• www.esl-lab.com/
• www.elllo.org/

Listening: Audio Books

• www.fluentu.com
• www.5minuteenglish.com
• www.learning-english-online.net

Speaking:

• www.englishclub.com
• www.soundsofenglish.org
• www.eslcafe.com
• www.voki.com
• www.voicethread.com

Reading: 

• www.eslus.com/LESSONS/READING/READ.HTM

Writing:

• www.writing-world.com
• www.blogger.com

Grammar:

• www.eslcafe.com
• english-zone.com/grammar/index.html
• www.englisch-ilfen.de/en/grammar/adverbs_position.htm

Interactive Multimedia

• www.wikispaces.com
• www.glogster.com

Games :

• www.languagegames.org.

TOEFL Preparation:

• www.ets.org
• www.etsmiddleeast.org

Other useful sites :

• http://www.eslpartyland.com/teachers/nov/grammar.htm
• http://a4esl.org
• http://www.rong-chang.com
• http://english-zone.com/index.php
• http://www.lovetolearnplace.com

Learning English by watching movies

• www.zunal.com

Web Quests (Learn English online with real teachers in live classes)

• www.teachingenglish.org.uk
• www.lingoda.com
• www.webquest.org