The following are some links for improving listening comprehension in English.
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BBC Learning English - How To...
http://www.bbc.co.uk/worldservice/learningenglish/language/howto/
BBC Learning English - The Teacher
http://www.bbc.co.uk/worldservice/learningenglish/language/theteacher
BBC Learning English - Watch and Learn Entertainment
http://www.bbc.co.uk/worldservice/learningenglish/multimedia/archive_ent.shtml
Better at English
http://www.betteratenglish.com
The Bob and Rob Show
http://www.thebobandrobshow.com
British Council - Listening Downloads - Professionals
http://www.britishcouncil.org/professionals-podcast-english-listening-downloads-archive.htm
China 232
Elllo
English Central
http://www.englishcentral.com/en/videos
ESOL Courses - Listening Exercises
http://www.esolcourses.com/content/topicsmenu/listening.html
Jokes in English
http://www.manythings.org/jokes
Listen a Minute
Listen and Read Along
http://www.manythings.org/listen
Listen to English
http://www.listen-to-english.com
Randall's Cyber ESL Listening Lab