Listening, music 
& viewing

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These are site your students can use to practicing listening, music (both listening and singing along) and viewing English videos.  The listening and viewing sites are mainly designed for EFL/ESL learners.  The quick link URL (one you can give your students) is:  www.tinyurl.com/LisMusView

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Listening  
http://www.esl-lab.com/      Lots of short recordings, designed for ESL/EFL student, You can choose your own level of difficulty. 

News:
http://www.voanews.com/learningenglish/home/     News in simplified English. From Voice of America (VOA). 

http://www.bbc.co.uk/worldservice/learningenglish/    More difficult than VOA, but excellent material.

Music     
One of the simplest ways is to go to www.youtube.com   Search for either the artist or song you like + the word LYRICS.   You'll find a version of the song where you can read the the words as you listen or sing. 

If you can't find a video with the lyrics, try opening two windows (CTRL + n)..  In one you find the video on youtube.  In the other, search for the song name + lyrics.   You can have both open as you listen. 

http://lyricstraining.com/    Cloze  (fill in the blanks) with songs, including new songs.  You can decide the level of difficulty. 

http://karaokeparty.com/    Just what it sounds like. 
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Viewing   

http://englishcentral.com/    Lots of short videos, all with exercises.   Many are free.  

http://lingual.net/      More videos.  Scripts are available.  You can see student popularity ratings for each video.