Vocabulary

Bilingual

• Wordreference
• Reverso
• Linguee 

Monolingual

• Collins 
• Cambridge
• oxforddictionaries.com
• Merriam-Webster
• Eflnet.com
• Pictolang
• Urbandictionary.com 
• Visual dictionary 
• Macmillandictionary.com
• Languageguide.org/english/ 
• oxfordlearnersdictionaries.com 
• Longman 

Collocations

• Ozdic

Grammar

• Edufind 
• Self-study grammar quizzes 
• English-hilfen 

Listening

• English sounds
• Phonetic exercises
• Englishspeak
• Learningenglish (BBC)
• Podcastsinenglish.coml
• ESLpod.com
• Esl-lab.com
• Reuters.com (video with transcripsts)
• Tunein.com (radio stations)
• Engvid.com 
• Speakingenglishpodcast.com 
• Rdlessons.com 
• Learningenglish.voanews.com 
• British council 
• Elllo.org 
• Lessonstream.org 
• TED
• AudioEnglish 
• Letshavefunwithenglish 
• Cinema.clubfefl.gr 

Speaking

• Skype
• howjsay.com
• Text-to-speech
• Language-exchanges.org
• Englishbaby.com 
• Speaking24.com 
• Voxswap.com 
• BBC learning English
• Pronouncehow.com 
• Forvo 
• Shiporsheep 
• Allphonetics
• Englishclub 
• Italki  

Reading

• The Times
• The NY Times 
• The Guardian
• itellyouastory.com
• BBC News Magazine 
• Breakingnews 
• Bibliomania
• Esl-bits.net 
• English e-Reader 

Writing

• oxforddictionaries.com

• www.wikihow.com
• About.com (formal letters)