Internal Sources for communication skill development:

Reading

Writing

Vocabulary

External sources for communication skill development:

Apps:

Anki (fully customizable, vocabulary, grammar, sentences)

iKnow (vocabulary, grammar, sentences)

Memrise (vocabulary, grammar, sentences)

Quizlet (fully customizable, mainly vocabulary)

Lang8 (writing practice)

Duolingo (vocabulary)

 

Websites:

 Breaking News English

Freakonomics

TED.com

 

Social media sites:

Facebook, Twitter, Instagram, Vine, Pinterest

Englishclub

tolearnEnglish

Learn English Online

 

Vocabulary 

 

Grammar

My English Pages

Education First

 

Books:

Graded Readers (From Koeki Library, or Toda books)

English books at your level or below

 

 

Magazines/ Newspapers:

Asahi Shimbun

The Japan News (Yomiuri Shimbun)

Time Magazine

The Economist

National Geographic

The Japan Times

The New York Times

Huffington Post